Where does “oo” come from?

oo (Manx) comes from Old Irish tú, from Proto-Celtic tū, from Proto-Indo-European túh₂ — you, thou.

oo (Manx): you

Definitions

  1. you

Ancestry of “oo”, step by step

StepLanguageWordMeaning
1Old Irishtúyou singular nominative, thou
2Proto-Celtictūyou (singular), thou
3Proto-Indo-Europeantúh₂you, thou
Every word from Proto-Indo-European túh₂ →Every word from Proto-Celtic tū →Every word from Old Irish tú →