The basic vocabulary of Portuguese—the second largest Romance language in terms of speakers (about 210 million as of 2017)—comes from (vulgar) Latin, which itself incorporated a certain amount of so-called substratum and superstratum words. Whereas the former were adopted in a situation of language contact between Latin and the languages of the conquered peoples inhabiting the Iberian Peninsula, the latter are Germanic loans brought mainly by the Visigoths. From 711 onward, until the end of the Middle Ages, Arabic played a major role in the Peninsula, contributing about 1,000 words that are common in Modern Portuguese. (Classical) Latin and Greek were other sources for lexical enrichment especially in the 15th and 16th centuries as well as in the 18th and 19th centuries. Contact with other European languages—Romance and Germanic (especially English, and to a lower extent German)—led to borrowings in several thematic fields reflecting the economic, cultural, and scientific radiance that emanated from the respective language communities. In the course of colonial expansion, Portuguese came into contact with several African, Asian, and Amerindian languages from which it borrowed words for concepts and realia unknown to the Western world.