apprise (one) of
To inform one. The phrase can be used with or without a noun between "apprise" and "of." Has anyone apprised him of the new policy outlined in the meeting? Please keep me apprised of any changes.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
apprise someone of something
to inform someone of something. I hope you will apprise me of any change. Have you been apprised of the new rule?
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.