lest
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About Our Definitions: All forms of a word (noun, verb, etc.) are now displayed on one page.lest
conjunction \ˈlest\Definition of LEST
: for fear that —often used after an expression denoting fear or apprehension <worried lest she should be late> <hesitant to speak out lest he be fired>
See Origin of LEST
Middle English les the, leste, from Old English thȳ lǣs the, from thȳ (instrumental of thæt that) + lǣs + the, relative particle
First Known Use: before 12th century
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All Words Near: lest
Previous Word in the Dictionary: less–than–truckload
All Words Near: lest
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