Where does “solium” come from?

solium (Medieval Latin) comes from Latin solium, from Proto-Indo-European sodyom, from Proto-Indo-European sḗd-.

Ancestry of “solium”, step by step

Step	Language	Word	Meaning
1	Latin	solium	seat, chair; throne, chair of state, official...
2	Proto-Indo-European	sodyom	—
3	Proto-Indo-European	sḗd-	—

solium — Etymology, Origin & Word History | Etymology Explorer