adjective Date: 1922 of, relating to, or dealing with phenomena (as of language or culture) as they occur or change over a period of time, ~ally adverb
DIACHRONIC
Meaning of DIACHRONIC in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012