Where does “вовсю” come from?

вовсю (Russian) comes from Russian весь, from Old East Slavic вьсь, from Proto-Slavic vьśь, from Proto-Indo-European weyḱ-, from Proto-Indo-European wey- — to wither; fade; to move, go ahead; to be strong;...

вовсю (Russian): as much or strongly as one can, to one's utmost

Definitions

  1. as much or strongly as one can, to one's utmost

Ancestry of “вовсю”, step by step

вовсю traces back through two separate lines of ancestry.

via Russian весь

StepLanguageWordMeaning
1Russianвесьall, the whole, the whole of; everything, all;...
2Old East Slavicвьсьentire, whole
3Proto-Slavicvьśьall
4Proto-Indo-Europeanweyḱ-to enter in; to settle; settlement
5Proto-Indo-Europeanwey-to wither; fade; to move, go ahead; to be strong;...

via Russian во

StepLanguageWordMeaning
1Russianвоin, at, on; to, into; at, in, on
Every word from Proto-Indo-European wey-Every word from Proto-Indo-European weyḱ-Every word from Proto-Slavic vьśь