Where does “подтвержда́ть” come from?

подтвержда́ть (Russian) comes from Russian подтверди́ть, from Russian твёрдый, from Old East Slavic твьрдъ, from Proto-Slavic tvьrdъ, from Proto-Balto-Slavic *twírˀtas, from Proto-Indo-European twerH- — to enclose, fence in; to grab, seize; to stir.

подтвержда́ть (Russian): to confirm, to corroborate, to bear out, to endorse, to ratify, to verify

Definitions

  1. to confirm, to corroborate, to bear out, to endorse, to ratify, to verify

Ancestry of “подтвержда́ть”, step by step

StepLanguageWordMeaning
1Russianподтверди́тьto confirm, to corroborate, to bear out, to endorse, to ratify, to verify
2Russianтвёрдыйhard, solid; firm; steadfast, steady
3Old East Slavicтвьрдъ
4Proto-Slavictvьrdъhard, firm, solid
5Proto-Balto-Slavic*twírˀtashard, firm, solid
6Proto-Indo-EuropeantwerH-to enclose, fence in; to grab, seize; to stir

Words derived from “подтвержда́ть

Every word from Proto-Indo-European twerH-Every word from Proto-Balto-Slavic *twírˀtasEvery word from Proto-Slavic tvьrdъ