alighten

Etymology

From Middle English alighten, from a merger of Old English ālīhtan (“to alight, dismount”), from prefix ā- (compare Gothic 𐌿𐍃- (us-), German er- originally meaning "out") + līhtan (“to alight”); and Old English ġelīhtan (“to alight, approach, come, come down, dismount”); equivalent to alight + -en.