Meaning

verb do something that one considers to be below one's dignity

originFrom Middle English deinen, deynen (“to consider (something) suitable to one’s dignity or worth, condescend; to appear worthy; to condescend to grant (something), permit, vouchsafe; to regard (someone) as worthy; to consecrate, dedicate (something)”), from Old French daigner, degnier, deigner, deignier (“to condescend, deign”) (modern French daigner), from Latin dignāre, the present active…

Etymology from Wiktionary, CC BY-SA 3.0