Where does “iantar” come from?

iantar (Old Leonese) comes from Vulgar Latin *iantāre, from Latin ientāre.

Ancestry of “iantar”, step by step

Step	Language	Word	Meaning
1	Vulgar Latin	*iantāre	—
2	Latin	ientāre	—

iantar — Etymology, Origin & Word History | Etymology Explorer