Where does “certus” come from?

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

certus (Latin): certain; fixed, settled, firm; resolved,...

Definitions

  1. certain; fixed, settled, firm; resolved,...

Ancestry of “certus”, step by step

certus traces back through two separate lines of ancestry.

via Proto-Indo-European krey-

StepLanguageWordMeaning
1Proto-Indo-Europeankrey-to sift, separate, divide

via Proto-Celtic kritos

StepLanguageWordMeaning
1Proto-Celtickritostrembling, fever

Words derived from “certus

Every word from Proto-Indo-European krey-