condescend

Concise Oxford English Dictionary © 2008 Oxford University Press:
condescend/kɒndɪˈsend/

▶verb show that one feels superior.

■ do something despite regarding it as below one's dignity: he condescended to see me at my hotel.

– derivatives
condescending adjective,
condescendingly adverb,
condescension noun.

– origin ME (in the sense ‘give way, defer’): from OFr. condescendre, from eccles. L. condescendere, from con- ‘together’ + descendere ‘descend’.