Where does “твинк” come from?

твинк (Russian) comes from English twink, from Middle English twinken, from Old English twincian, from Proto-Germanic twinkōną, from Proto-Germanic twint- — to twinkle.

Ancestry of “твинк”, step by step

StepLanguageWordMeaning
1EnglishtwinkTo twinkle; sparkle; To wink; One or more very...
2Middle Englishtwinkento blink; twinkle
3Old Englishtwincianto wink; twinkle
4Proto-Germanictwinkōną—
5Proto-Germanictwint-to twinkle
Every word from Proto-Germanic twint- →
твинк — Etymology, Origin & Word History | Etymology Explorer