Where does “-ish” come from?

-ish (Manx) comes from Old Irish -as, from Proto-Celtic -assus, from Proto-Indo-European -ad-tus.

-ish (Manx): -ish; -self

Definitions

  1. -ish; -self

Ancestry of “-ish”, step by step

StepLanguageWordMeaning
1Old Irish-asNominal suffix, used to form abstract ideas or...
2Proto-Celtic-assus—
3Proto-Indo-European-ad-tus—

Words derived from “-ish”

Every word from Proto-Indo-European -ad-tus →Every word from Old Irish -as →Every word from Proto-Celtic -assus →