Where does “volátko” come from?

volátko (Czech) comes from Czech vole, from Old Czech vóle, from Proto-Slavic *voľà, from Proto-Balto-Slavic wáljāˀ, from Proto-Indo-European welh₁- — to choose; to want.

Ancestry of “volátko”, step by step

StepLanguageWordMeaning
1Czechvolevocative singular of vůl; man, dude; crop, craw
2Old Czechvólewill
3Proto-Slavic*voľàwill
4Proto-Balto-Slavicwáljāˀwill
5Proto-Indo-Europeanwelh₁-to choose; to want
Every word from Proto-Indo-European welh₁- →Every word from Proto-Balto-Slavic wáljāˀ →Every word from Proto-Slavic *voľà →