deign to do
deign to (do something)
To condescend to do something; to do something that one considers below one's status. Now that Billy's famous, I doubt he'll deign to call his own mother.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
deign to do something
to lower oneself to do something. She will never deign to join in with us. I expect that he will not deign to have dinner with us.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.