Linguistics
Linguistics is the scientific study of language. It encompasses the analysis of language form, language meaning, and language in context. Linguists traditionally analyse human language by observing an interplay between sound and meaning. The field has been described as cognizant of the etymology of words, and concerned with the phonological, morphological, syntactic, semantic, and pragmatic dimensions of language.
Historical linguistics investigates how languages change over time. The lexicon of a language is a list of its lexemes. Linguists have proposed various theories to account for language acquisition and the cognitive processes involved in language comprehension and production.