Where does “visas” come from?

visas (Proto-Balto-Slavic) comes from Proto-Indo-European wi-so-s, from Proto-Indo-European wī-, from Proto-Indo-European weye- — to drive, separate.

Ancestry of “visas”, step by step

StepLanguageWordMeaning
1Proto-Indo-Europeanwi-so-s—
2Proto-Indo-Europeanwī-apart, asunder, in two; separate, alone;...
3Proto-Indo-Europeanweye-to drive, separate
Every word from Proto-Indo-European weye- →Every word from Proto-Indo-European wī- →Every word from Proto-Indo-European wi-so-s →