Where does “-ú” come from?

-ú (Irish) comes from Old Irish -ugud, from Old Irish -ad, from Proto-Celtic -tus, from Proto-Indo-European -tus — Derives action nouns from verb roots.

-ú (Irish): Regular verbal noun of second-conjugation verbs,...

Definitions

  1. Regular verbal noun of second-conjugation verbs,...

Ancestry of “-ú”, step by step

StepLanguageWordMeaning
1Old Irish-ugud—
2Old Irish-adsuffix forming verbal nouns; suffix forming the...
3Proto-Celtic-tusForms action nouns from verb stems
4Proto-Indo-European-tusDerives action nouns from verb roots

Words derived from “-ú”

Every word from Proto-Indo-European -tus →Every word from Old Irish -ad →Every word from Old Irish -ugud →