condescend (adj.)
mid-14c., "to yield deferentially," from Old French condescendere (14c.) "to agree, consent, give in, yield," from Late Latin condescendere "to let oneself down," from Latin com- "together" (see com-) + descendere "descend" (see descend). Sense of "to sink willingly to equal terms with inferiors" is from mid-15c.