Where does “підтвердити” come from?

підтвердити (Ukrainian) comes from Ukrainian твердити, from Proto-Slavic *tvьrditi — to harden.

підтвердити (Ukrainian): to confirm, to corroborate, to bear out

Definitions

  1. to confirm, to corroborate, to bear out

Ancestry of “підтвердити”, step by step

StepLanguageWordMeaning
1Ukrainianтвердитиto affirm, to assert, to aver, to claim, to insist, to maintain state emphatically
2Proto-Slavic*tvьrditito harden
Every word from Proto-Slavic *tvьrditi →Every word from Ukrainian твердити →