Idioms and Phrases with swallow one's words
swallow one's words
Take back what one said, as in If they win I'll have to swallow my words. George Farquhar used this idiom in The Inconstant (1702): “I have swallowed my words already; I have eaten them up.” For a synonym, see eat one's words.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.