Where does “sedere” come from?

sedere (Latin) comes from Proto-Italic sedēō, from Proto-Indo-European sḗd-.

Ancestry of “sedere”, step by step

Step	Language	Word	Meaning
1	Proto-Italic	sedēō	sit, be sitting, be seated
2	Proto-Indo-European	sḗd-	—

sedere — Etymology, Origin & Word History | Etymology Explorer