Where does “cierto” come from?

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

Ancestry of “cierto”, step by step

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

Words derived from “cierto”

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