Where does “o” come from?

o (Mbyá Guaraní) comes from Proto-Tupi-Guarani ok, from Proto-Tupian ekʷ — house.

Ancestry of “o”, step by step

StepLanguageWordMeaning
1Proto-Tupi-Guaraniokhouse
2Proto-Tupianekʷhouse
Every word from Proto-Tupian ekʷ →Every word from Proto-Tupi-Guarani ok →
o — Etymology, Origin & Word History | Etymology Explorer