under someone's spell

under someone's spell idiom
Fascinated or influenced by someone, as in I think he has our daughter under his spell. This idiom derives from the literal meaning of spell, “a word or formula that has magical power.” [Mid-1800s]

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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