Where does “сѣдъ” come from?

сѣдъ (Old East Slavic) comes from Proto-Slavic śědъ, from Proto-Slavic xoidъ.

Ancestry of “сѣдъ”, step by step

StepLanguageWordMeaning
1Proto-Slavicśědъgray
2Proto-Slavicxoidъ—

Words derived from “сѣдъ”

Every word from Proto-Slavic xoidъ →Every word from Proto-Slavic śědъ →
сѣдъ — Etymology, Origin & Word History | Etymology Explorer