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Idioms and Phrases with not one iota

not one iota

Not even the smallest amount, as in He got not one iota of thanks for his efforts. This usage appeared in slightly different form in the New Testament (Matthew 5:18): “One jot [iota] ... shall in no wise pass from the law till all be fulfilled.” (The noun jot comes from the Greek iota.)

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.