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Article

Holger Diessel and Martin Hilpert

Until recently, theoretical linguists have paid little attention to the frequency of linguistic elements in grammar and grammatical development. It is a standard assumption of (most) grammatical theories that the study of grammar (or competence) must be separated from the study of language use (or performance). However, this view of language has been called into question by various strands of research that have emphasized the importance of frequency for the analysis of linguistic structure. In this research, linguistic structure is often characterized as an emergent phenomenon shaped by general cognitive processes such as analogy, categorization, and automatization, which are crucially influenced by frequency of occurrence. There are many different ways in which frequency affects the processing and development of linguistic structure. Historical linguists have shown that frequent strings of linguistic elements are prone to undergo phonetic reduction and coalescence, and that frequent expressions and constructions are more resistant to structure mapping and analogical leveling than infrequent ones. Cognitive linguists have argued that the organization of constituent structure and embedding is based on the language users’ experience with linguistic sequences, and that the productivity of grammatical schemas or rules is determined by the combined effect of frequency and similarity. Child language researchers have demonstrated that frequency of occurrence plays an important role in the segmentation of the speech stream and the acquisition of syntactic categories, and that the statistical properties of the ambient language are much more regular than commonly assumed. And finally, psycholinguists have shown that structural ambiguities in sentence processing can often be resolved by lexical and structural frequencies, and that speakers’ choices between alternative constructions in language production are related to their experience with particular linguistic forms and meanings. Taken together, this research suggests that our knowledge of grammar is grounded in experience.

Article

The term productivity most commonly applies to word formation, but in principle it can be applied to any linguistic process. A process is said to be productive if it applies without restriction to give rise to novel expressions, for instance, new words. Ideally, speakers apply productive processes without conscious deliberation and in principle they can be applied by any and all competent native speakers. Creative coining of words, by contrast, is typically a one-off intentional act (nonce word creation), often of one individual, and often with the aim of drawing attention to the coined word for the purposes of advertising, humor, and so on. Creative coining often involves extra-grammatical processes which cannot be described deterministically, unlike bona fide linguistic rules. However, many productive processes are restricted in various ways, and some of the extra-grammatical devices are very frequent, so the distinction between productive, grammatical word formation and (nonce) word creation is blurred.

Article

Holger Diessel

Throughout the 20th century, structuralist and generative linguists have argued that the study of the language system (langue, competence) must be separated from the study of language use (parole, performance), but this view of language has been called into question by usage-based linguists who have argued that the structure and organization of a speaker’s linguistic knowledge is the product of language use or performance. On this account, language is seen as a dynamic system of fluid categories and flexible constraints that are constantly restructured and reorganized under the pressure of domain-general cognitive processes that are not only involved in the use of language but also in other cognitive phenomena such as vision and (joint) attention. The general goal of usage-based linguistics is to develop a framework for the analysis of the emergence of linguistic structure and meaning. In order to understand the dynamics of the language system, usage-based linguists study how languages evolve, both in history and language acquisition. One aspect that plays an important role in this approach is frequency of occurrence. As frequency strengthens the representation of linguistic elements in memory, it facilitates the activation and processing of words, categories, and constructions, which in turn can have long-lasting effects on the development and organization of the linguistic system. A second aspect that has been very prominent in the usage-based study of grammar concerns the relationship between lexical and structural knowledge. Since abstract representations of linguistic structure are derived from language users’ experience with concrete linguistic tokens, grammatical patterns are generally associated with particular lexical expressions.

Article

Rochelle Lieber

Derivational morphology is a type of word formation that creates new lexemes, either by changing syntactic category or by adding substantial new meaning (or both) to a free or bound base. Derivation may be contrasted with inflection on the one hand or with compounding on the other. The distinctions between derivation and inflection and between derivation and compounding, however, are not always clear-cut. New words may be derived by a variety of formal means including affixation, reduplication, internal modification of various sorts, subtraction, and conversion. Affixation is best attested cross-linguistically, especially prefixation and suffixation. Reduplication is also widely found, with various internal changes like ablaut and root and pattern derivation less common. Derived words may fit into a number of semantic categories. For nouns, event and result, personal and participant, collective and abstract noun are frequent. For verbs, causative and applicative categories are well-attested, as are relational and qualitative derivations for adjectives. Languages frequently also have ways of deriving negatives, relational words, and evaluatives. Most languages have derivation of some sort, although there are languages that rely more heavily on compounding than on derivation to build their lexical stock. A number of topics have dominated the theoretical literature on derivation, including productivity (the extent to which new words can be created with a given affix or morphological process), the principles that determine the ordering of affixes, and the place of derivational morphology with respect to other components of the grammar. The study of derivation has also been important in a number of psycholinguistic debates concerning the perception and production of language.

Article

Adjectivalization is the derivation of adjectives from a verb, a noun, an adjective, and occasionally from other parts of speech or from phrases. Cross-linguistically, adjectivalization seems to be less frequent than nominalization and verbalization. In most languages adjectivalization involves suffixation, but other adjectivalization devices, such as prefixation, reduplication or zero derivation, are also attested. Adjectivalization by means of suffixation has been studied in depth for English. As for other languages in which suffixation is used for adjectivalization, topics that have been studied for English are the types of suffixes used for adjectivalization, their productivity, their semantic contribution, the category of the base to which they attach, and their etymology. For English an etymological distinction between native suffixes and suffixes with a Romance, more specifically Latinate, origin can be made, related to their bound or non-bound character, the type of base to which they attach, and the prosody of the derived word. One of the major challenges to the idea of word-class changing derivation, in this case adjectivalization, comes from polyfunctional words. Participles may function both as verbs and as adjectives, which leads to the question how these complex forms are formally and semantically related. There are also derivational suffixes that are used for the formation of both adjectives and nouns. For these cases as well the formal and semantic relation has to be established. For several Western European languages a relation has been established, in the theoretical literature, between the polyfunctionality of adjectival/nominal suffixes and their influence on the prosody or the phonological properties of the root, due to their etymology. It seems that the dichotomy between two types of suffixes that is created in this way does not always occur and that there is also a mixed case.

Article

Sándor Martsa

Conversion is traditionally viewed as a word-formation technique of forming a word from a formally identical but categorically different word without adding a(n explicit) morphological exponent. Despite its apparent formal simplicity manifested first of all in the sameness of the input and the output, the proper understanding of what exactly happens during conversion, morphosyntactically and semantically alike, is by no means an easy matter even in respect of one language, let alone languages representing different typological groups or subgroups. To determine the linguistic status of conversion and its place among other types of word formation is not a simple matter either, and, paradoxically, it is especially so in the case of the most extensively studied English conversion. The reason for this is that the traditional view of conversion has often been called into question, giving rise to a diversity of interpretations of conversion not only in English but also in a cross-linguistic perspective. Conversion research has gone a long way to explore the mechanism of conversion as a kind of word formation; nevertheless, further research is necessary to understand every detail of this mechanism.

Article

Pius ten Hacken

The scope of classical generative morphology is not clearly determined. All three components need clarification. The boundaries of what counts as generative linguistics are not unambiguously set, but it can be assumed that all generative work in linguistics is inspired by the work of Noam Chomsky. Morphology was a much more prominent component of linguistic theory in earlier approaches, but of course the subject field had to be accounted for also in generative linguistics. The label classical can be seen as restricting the scope both to the more mainstream approaches and to a period that ends before the present. Here, the early 1990s will be taken as the time when classical theorizing gave way to contemporary generative morphology. In the earliest presentations of generative linguistics, there was no lexicon. The introduction of the lexicon made many of the ideas formulated before obsolete. Chomsky’s Lexicalist Hypothesis provided the basis for a new start of research in morphology. Two contrasting elaborations appeared in the early 1970s. Halle proposed a model based on the combination of morphemes, Jackendoff one based on the representation and analysis of full words. Against this background, a number of characteristic issues were discussed in the 1970s and 1980s. One such issue was the form of rules. Here there was a shift from transformations to rewrite rules. This shift can be seen particularly well in the discussion of verbal compounds, e.g., truck driver. The question whether and how morphology should be distinguished from syntax generated a lot of discussion. Another broad question was the degree to which rules of morphology should be thought of as operating in separate components. This can be observed in the issue of the distinction of inflection and derivation and in level ordering. The latter was a proposal to divide affixes into classes with different phonological and other effects on the base they attach to. A side effect of level ordering was the appearance of bracketing paradoxes, where, for instance, generative grammarian has a phonological constituent grammarian but a semantic constituent generative grammar. Another aspect of rule application which can be constructed as a difference between morphology and syntax is productivity. In general, syntactic rules are more productive and morphological rules display blocking effects, where, for instance, unpossible is blocked by the existence of impossible. Being classical, much of the discussions in this period serves as a shared background for the emergence and discussion of current generative approaches in morphology. The transition to these theories started in the 1990s, although some of them appeared only in the early 2000s.

Article

Segment-level alternations that realize morphological properties or that have other morphological significance stand either at an interface or along a continuum between phonology and morphology. The typical source for morphologically correlated sound alternations is the automatic phonology, interacting with discrete morphological operations such as affixation. Traditional morphophonology depends on the association of an alternation with a distinct concatenative marker, but the rise of stem changes that are in themselves morphological markers, be they inflectional or derivational, resides in the fading of phonetic motivation in the conditioning environment, and thus an increase in independence from historical phonological sources. The clearest cases are sole-exponent alternations, such as English man~men or slide~slid, but it is not necessary that the remainder of an earlier conditioning affix be entirely absent, only that synchronic conditioning is fully opaque. Once a sound-structural pattern escapes the unexceptional workings of a language's general phonological patterning, yet reliably serves a signifying function for one or more morphological properties, the morphological component of the grammar bears a primary if not sole responsibility for accounting for the pattern’s distribution. It is not uncommon for the transition of analysis into morphology from (morpho)phonology to be a fitful one. There is an established tendency for phonological theory to hold sway in matters of sound generally, even at the expense of challenging learnability through the introduction of remote representations, ad hoc triggering devices, or putative rules of phonology of very limited generality. On the morphological side, a bias in favor of separable morpheme-like units and syntax-like concatenative dynamics has relegated relations like stem alternations to the margins, no matter how regular, productive, or distinct from general phonological patterns in the language in question overall. This parallel focus of each component on a "specialization" as it were has left exactly morphologically significant stem alternations such as Germanic Ablaut and Celtic initial-consonant mutation poorly served. In both families, these robust sound patterns generally lack reliable synchronic phonological conditioning. Instead, one must crucially refer to grammatical structure and morphological properties in order to account for their distributions. It is no coincidence that such stem alternations look phonological, just as fossils resemble the forms of the organisms that left them. The work of morphology likewise does not depend on alternant segments sharing aspects of sound, but the salience of the system may benefit from perceptible coherence of form. One may observe what sound relations exist between stem alternants, but it is neither necessary nor realistic to oblige a speaker/learner to generate established stem alternations anew from remote underlying representations, as if the alternations were always still arising; to do so constitutes a grafting of the technique of internal reconstruction as a recapitulating simulation within the synchronic grammar.

Article

Corpora are an all-important resource in linguistics, as they constitute the primary source for large-scale examples of language usage. This has been even more evident in recent years, with the increasing availability of texts in digital format leading more and more corpus linguistics toward a “big data” approach. As a consequence, the quantitative methods adopted in the field are becoming more sophisticated and various. When it comes to morphology, corpora represent a primary source of evidence to describe morpheme usage, and in particular how often a particular morphological pattern is attested in a given language. There is hence a tight relation between corpus linguistics and the study of morphology and the lexicon. This relation, however, can be considered bi-directional. On the one hand, corpora are used as a source of evidence to develop metrics and train computational models of morphology: by means of corpus data it is possible to quantitatively characterize morphological notions such as productivity, and corpus data are fed to computational models to capture morphological phenomena at different levels of description. On the other hand, morphology has also been applied as an organization principle to corpora. Annotations of linguistic data often adopt morphological notions as guidelines. The resulting information, either obtained from human annotators or relying on automatic systems, makes corpora easier to analyze and more convenient to use in a number of applications.