Where does “выпрямиться” come from?

выпрямиться (Russian) comes from Russian вы́прямить, from Russian вы́-, from Old East Slavic вꙑ-, from Proto-Slavic vy-, from Proto-Balto-Slavic ū́, from Proto-Indo-European úd — out, outward.

выпрямиться (Russian): to stand up straight, to become straight; to erect oneself, to draw oneself up

Definitions

  1. to stand up straight, to become straight; to erect oneself, to draw oneself up

Ancestry of “выпрямиться”, step by step

StepLanguageWordMeaning
1Russianвы́прямитьto straighten
2Russianвы́-out, out from describing an action of moving outside from inside
3Old East Slavicвꙑ-—
4Proto-Slavicvy-out
5Proto-Balto-Slavicū́—
6Proto-Indo-Europeanúdout, outward
Every word from Proto-Indo-European úd →Every word from Russian вы́- →Every word from Proto-Balto-Slavic ū́ →