Number is the category through which languages express information about the individuality, numerosity, and part structure of what we speak about. As a linguistic category it has a morphological, a morphosyntactic, and a semantic dimension, which are variously interrelated across language systems. Number marking can apply to a more or less restricted part of the lexicon of a language, being most likely on personal pronouns and human/animate nouns, and least on inanimate nouns. In the core contrast, number allows languages to refer to ‘many’ through the description of ‘one’; the sets referred to consist of tokens of the same type, but also of similar types, or of elements pragmatically associated with one named individual. In other cases, number opposes a reading of ‘one’ to a reading as ‘not one,’ which includes masses; when the ‘one’ reading is morphologically derived from the ‘not one,’ it is called a singulative. It is rare for a language to have no linguistic number at all, since a ‘one–many’ opposition is typically implied at least in pronouns, where the category of person discriminates the speaker as ‘one.’ Beyond pronouns, number is typically a property of nouns and/or determiners, although it can appear on other word classes by agreement. Verbs can also express part-structural properties of events, but this ‘verbal number’ is not isomorphic to nominal number marking. Many languages allow a variable proportion of their nominals to appear in a ‘general’ form, which expresses no number information. The main values of number-marked elements are singular and plural; dual and a much rarer trial also exist. Many languages also distinguish forms interpreted as paucals or as greater plurals, respectively, for small and usually cohesive groups and for generically large ones. A broad range of exponence patterns can express these contrasts, depending on the morphological profile of a language, from word inflections to freestanding or clitic forms; certain choices of classifiers also express readings that can be described as ‘plural,’ at least in certain interpretations. Classifiers can co-occur with other plurality markers, but not when these are obligatory as expressions of an inflectional paradigm, although this is debated, partly because the notion of classifier itself subsumes distinct phenomena. Many languages, especially those with classifiers, encode number not as an inflectional category, but through word-formation operations that express readings associated with plurality, including large size. Current research on number concerns all its morphological, morphosyntactic, and semantic dimensions, in particular the interrelations of them as part of the study of natural language typology and of the formal analysis of nominal phrases. The grammatical and semantic function of number and plurality are particularly prominent in formal semantics and in syntactic theory.
Willem F. H. Adelaar
Quechuan is a family of closely related indigenous languages spoken in Argentina, Bolivia, Colombia, Ecuador, and Peru, in the central part of the Andean cordilleras, in what used to be the Empire of the Incas and adjacent areas. It is divided into two main branches, commonly denominated Quechua I and II, and comprises 15 or more spoken varieties and several extinct ones that can be considered separate languages, although an exact number cannot easily be established. Quechuan shares a long and intense contact history with the neighboring Aymaran languages, but a genealogical relationship between the two families has never been demonstrated, nor a relationship with any other language family in the area. Quechuan languages are mainly agglutinative. All grammatical categories are indicated by suffixes with very few exceptions. The order in which these suffixes occur within a word form is governed by rules and combinatory restrictions that can be rigid but not always explicable on a basis of scope and function. Portmanteau suffixes play a role in verbal inflection and in mutually interrelated domains of aspect and number in the Quechua I branch. In Quechuan verbal derivation affixes may be semantically polyvalent, depending on the combinations in which they occur, pragmatic considerations, the nature of the root to which they are attached, their position in the affix order, and so on. Verbal derivational affixes often combine with specific verbal roots to denote meanings that are not fully predictable on the basis of the meaning of the components. Other verbal affixes never occur in such combinations. Verbal morphology and nominal morphology tend to overlap in the domain of personal reference, where subject and possessor markers are largely similar. Otherwise, the two morphological domains are almost completely separate. Not only the morphological inventories but also the formal constraints underlying the structure of verbs and nouns differ. Nominal expressions feature an elaborate but relatively instable system of case markers, some of which appear to be of recent formation. Transposition from one class to another, nominalization in particular, is indicated morphologically and occupies a central place in Quechuan grammar, particularly in interaction with case. Finally, there is a class of Independent suffixes that can be attached to members of all word classes, including adverbial elements that cannot be classified as verbs or nominals. These suffixes play a role at the organizational level of larger syntactic units, such as clauses, nominal phrases, and sentences.
Olaf Koeneman and Hedde Zeijlstra
The relation between the morphological form of a pronoun and its semantic function is not always transparent, and syncretism abounds in natural languages. In a language like English, for instance, three types of indefinite pronouns can be identified, often grouped in series: the some-series, the any-series, and the no-series. However, this does not mean that there are also three semantic functions for indefinite pronouns. Haspelmath (1997), in fact distinguishes nine functions. Closer inspection shows that these nine functions must be reduced to four main functions of indefinites, each with a number of subfunctions: (i) Negative Polarity Items; (ii) Free-Choice Items; (iii) negative indefinites; and (iv) positive or existential indefinites. These functions and subfunctions can be morphologically realized differently across languages, but don’t have to. In English, functions (i) and (ii), unlike (iii) and (iv), may morphologically group together, both expressed by the any-series. Where morphological correspondences between the kinds of functions that indefinites may express call for a classification, such classifications turn out to be semantically well motivated too. Similar observations can be made for definite pronouns, where it turns out that various functions, such as the first person inclusive/exclusive distinction or dual number, are sometimes, but not always morphologically distinguished, showing that these may be subfunctions of higher, more general functions. The question as to how to demarcate the landscape of indefinite and definite pronouns thus does not depend on semantic differences alone: Morphological differences are at least as much telling. The interplay between morphological and semantic properties can provide serious answers to how to define indefinites and the various forms and functions that these may take on.