Middle English word apperen comes from Latin paret, Latin ad ((direction) toward, to, on, up to, for.), Latin ad- (To.)

Detailed word origin of apperen

Dictionary entry	Language	Definition
paret	Latin (lat)
ad	Latin (lat)	(direction) toward, to, on, up to, for.
ad-	Latin (lat)	To.
apparesco	Latin (lat)	I begin to appear.
aparoir	Old French (fro)	To appear (come into view). To appear (to come into existence).
aperen	Middle English (enm)

Words with the same origin as apperen