Italian word accadere comes from Italian cadere, Italian a- (Ad- (indication direction) A- (indicating lack or loss).)

Detailed word origin of accadere

Dictionary entry	Language	Definition
cadere	Italian (ita)	(intransitive) to die. (intransitive) to drop, crash. (intransitive) to fall. (intransitive) to fall over, tumble.
a-	Italian (ita)	Ad- (indication direction) A- (indicating lack or loss).
accadere	Italian (ita)	(impersonal) to happen.

Words with the same origin as accadere