prevail on

prevail on idiom
Successfully persuade or influence, as in They prevailed on me to speak at their annual luncheon. This term uses prevail in the sense of “exert superior force.” It replaced prevail with in the mid-1600s.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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