通つう時じ言げん語ご学がく

noun

diachronic linguistics

Technical term in linguistics for the study of language change over time, often contrasted with 共時言語学 (synchronic linguistics).

• 通つう時じ言げん語ご学がくは、言げん語ごの歴れき史し的てき変へん化かを研けん究きゅうする分ぶん野やです。

  Diachronic linguistics is the field that studies historical changes in language.