Where does “resver” come from?

resver (Old French) comes from Frankish hnapp, from Proto-Germanic hnappaz — bowl; cup.

resver (Old French): to hallucinate; to be delirious; to wander about

Definitions

Step	Language	Word	Meaning
1	Frankish	hnapp	cup, bowl, basin; cup, bowl; bowl, cup
2	Proto-Germanic	hnappaz	bowl; cup

resver — Etymology, Origin & Word History | Etymology Explorer