Where does “fu” come from?

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

fu (Old Irish): Alternative form of fo

Definitions

  1. Alternative form of fo

Ancestry of “fu”, step by step

StepLanguageWordMeaning
1Old Irishfounder, beneath; towards; through, throughout
2Proto-Celticuɸounder, below
3Proto-Indo-Europeanupóunder, below
4Proto-Indo-Europeanh₃ewp-—
Every word from Proto-Indo-European h₃ewp- →Every word from Proto-Indo-European upó →Every word from Proto-Celtic uɸo →