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