Meaning

verb make imperfect

verb destroy or injure severely

adjective blemished by injury or rough wear

originFrom Middle English marred, merred (“troubled, distressed, vexed, bewildered”), from Old English *mierred, ġemyrred (“disturbed, troubled”), past participle of Old English mierran, ġemyrran (“to hinder, obstruct, force, trouble, err”), equivalent to mar + -ed.

Etymology from Wiktionary, CC BY-SA 3.0