Where does “caithem” come from?

caithem (Old Irish) comes from Old Irish -em, from Proto-Celtic *-īmā.

Ancestry of “caithem”, step by step

StepLanguageWordMeaning
1Old Irish-emForms occupational nouns
2Proto-Celtic*-īmā

Words derived from “caithem

Every word from Proto-Celtic *-īmāEvery word from Old Irish -em