Where does “доподлинно” come from?

доподлинно (Russian) comes from Russian допо́длинный, from Russian до-, from Proto-Slavic dȍ, from Proto-Indo-European de — Emphatic or contrastive particle, and, but;...

доподлинно (Russian): for sure

Definitions

  1. for sure

Ancestry of “доподлинно”, step by step

StepLanguageWordMeaning
1Russianдопо́длинныйauthentic
2Russianдо-up to; completely; pre-, ante-
3Proto-Slavicdȍup to, until
4Proto-Indo-EuropeandeEmphatic or contrastive particle, and, but;...
Every word from Proto-Indo-European de →Every word from Russian до- →Every word from Proto-Slavic dȍ →