diachronic

Definition of Diachronic in English :

1. diachronic, historical

used of the study of a phenomenon (especially language) as it changes through time

Example Sentences:
'diachronic linguistics'

WordNet Lexical Database for English. Princeton University. 2010.

Diachronic

adjective

of, relating to, or studying the development of a phenomenon through time; historical

diachronic linguistics

Compare synchronic

adjective

of or concerned with the study of changes occurring over a period of time, as in language, mores, etc.

adj.

Of or concerned with phenomena, such as linguistic features, as they change through time.