Where does “foithir” come from?

foithir (Old Irish) comes from Old Irish fo, from Proto-Celtic uɸo, from Proto-Indo-European upó, from Proto-Indo-European h₃ewp-.

foithir (Old Irish): a piece of unreclaimed valley or wooded land

Definitions

  1. a piece of unreclaimed valley or wooded land

Ancestry of “foithir”, step by step

StepLanguageWordMeaning
1Old Irishfounder, beneath; towards; through, throughout
2Proto-Celticuɸounder, below
3Proto-Indo-Europeanupóunder, below
4Proto-Indo-Europeanh₃ewp-—

Words derived from “foithir”

Every word from Proto-Indo-European h₃ewp- →Every word from Proto-Indo-European upó →Every word from Proto-Celtic uɸo →
foithir — Etymology, Origin & Word History | Etymology Explorer