Where does “tá bom” come from?

tá bom (Portuguese) comes from Portuguese estar, from Old Portuguese estar, from Latin stō, from Proto-Italic staēō, from Proto-Indo-European sth₂éh₁yeti, from Proto-Indo-European *steh₂-.

tá bom (Portuguese): all right used to indicate agreement

Definitions

  1. all right used to indicate agreement

Ancestry of “tá bom”, step by step

tá bom traces back through two separate lines of ancestry.

via Portuguese estar

StepLanguageWordMeaning
1Portugueseestarto be
2Old Portugueseestarto be
3Latinstōto stand
4Proto-Italicstaēōstand
5Proto-Indo-Europeansth₂éh₁yetito stand
6Proto-Indo-European*steh₂-

via Portuguese bom

StepLanguageWordMeaning
1Portuguesebomgood; well, very well
2Old Portuguesebõogood; ethical; good; pleasant
3Latinbonusgood, honest, brave, noble, kind, pleasant;...
4Old LatinduenosAlternative form of duonus
5Proto-Italicdwenosgood
6Proto-Indo-Europeandew-to show favour, revere; to fail, to lag, to be...
Every word from Proto-Indo-European *steh₂-Every word from Proto-Indo-European sth₂éh₁yetiEvery word from Proto-Italic staēō