Where does “certi” come from?

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

certi (Esperanto): to be certain

Definitions

  1. to be certain

Ancestry of “certi”, step by step

StepLanguageWordMeaning
1Esperantocertacertain, sure; certain, some, determinate
2Latincertuscertain; fixed, settled, firm; resolved,...
3Proto-Indo-Europeankrey-to sift, separate, divide
Every word from Proto-Indo-European krey- →Every word from Latin certus →Every word from Esperanto certa →
certi — Etymology, Origin & Word History | Etymology Explorer