Where does “сани” come from?

сани (Bulgarian) comes from Proto-Slavic sanь, from Proto-Balto-Slavic śaʔnos.

Ancestry of “сани”, step by step

StepLanguageWordMeaning
1Proto-Slavicsanьsleigh, sledge
2Proto-Balto-Slavicśaʔnos—

Words derived from “сани”

Every word from Proto-Balto-Slavic śaʔnos →Every word from Proto-Slavic sanь →