Where does “diachronic” come from?

Diachronic comes from Ancient Greek διά and χρονικός, the latter derived from χρόνος meaning time, ultimately from Proto-Indo-European dwóh₁.

diachronic (English): Occurring over or changing with time; Of,...

Definitions

  1. Occurring over or changing with time; Of,...

Ancestry of “diachronic”, step by step

StepLanguageWordMeaning
1EnglishchronicOf a problem, that continues over an extended...
2EnglishchronicalObsolete form of chronic; Misspelling of...
3Old FrenchcronikeAlternative form of cronicle
4LatinchronicusOf or pertaining to time; chronic
5Ancient Greekχρονικόςof or concerning time, temporal; chronological
6Ancient Greek-ικόςof or pertaining to, in the manner of; -ic
7Ancient Greek-κόςforms adjectives with the sense of 'of or...
8Proto-Indo-European-ḱos-y, -ic

Words derived from “diachronic

Every word from Proto-Indo-European -ḱosEvery word from Ancient Greek -ικόςEvery word from Ancient Greek -κός
diachronic — Etymology, Origin & Word History | Etymology Explorer