First Known Use: before 12th century
in the meaning defined above
See Words from the same year: for fear that
—used when you are saying something in order to prevent something from happening
See words that rhyme with lest Spanish Central: Translation of lest Nglish: Translation of lest for Spanish speakers Britannica English: Translation of lest for Arabic speakers
What made you want to look up lest? Please tell us where you read or heard it (including the quote, if possible).
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