Meaning

verb behave in a patronizing and condescending manner

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

verb debase oneself morally, act in an undignified, unworthy, or dishonorable way

originFrom Middle English condescenden, condescendre (“to deign, condescend; to accede graciously; to agree; to agree to, give consent; to make a concession, yield; etc.”), from Old French condescendre (“to descend, go down; to agree or assent to”) (modern French condescendre), from Ecclesiastical Latin condēscendere, the present active infinitive of condēscendō (“to stoop down; to condescend”), from…

Etymology from Wiktionary, CC BY-SA 3.0