Where does “desir” come from?

desir (Middle English) comes from Old French desirer, from Latin dēsīderō, from Latin sider-.

desir (Middle English): desire

Definitions

Step	Language	Word	Meaning
1	Old French	desirer	Alternative form of desirrer
2	Latin	dēsīderō	—
3	Latin	sider-	—

desir — Etymology, Origin & Word History | Etymology Explorer