Where does “certo” come from?

certo (Old Portuguese) comes from Latin certus, from Proto-Indo-European krey- — to sift, separate, divide.

Ancestry of “certo”, step by step

StepLanguageWordMeaning
1Latincertuscertain; fixed, settled, firm; resolved,...
2Proto-Indo-Europeankrey-to sift, separate, divide

Words derived from “certo

Every word from Proto-Indo-European krey-Every word from Latin certus