Real Dictionary

condescend
verb: If someone condescends to do something, they agree to do it, but in a way which shows that they think they are better than other people and should not have to do it.

condescend in American English
to descend voluntarily to the level, regarded as lower, of the person one is dealing with; be graciously willing to do something regarded as beneath one's dignity; deign
intransitive verb: to behave as if one is conscious of descending from a superior position, rank, or dignity

condescend in British English
to act graciously towards another or others regarded as being on a lower level; behave patronizingly