[shoo r-fahyuh r, shur-]
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Origin of surefire

First recorded in 1915–20; sure + fire Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for surefire

Contemporary Examples of surefire

Historical Examples of surefire

  • It was a surefire way of reminding the captains that men and frogs were brothers under the skin.

    The Mississippi Saucer

    Frank Belknap Long

Word Origin and History for surefire

also sure-fire, by 1864, American English, from sure + fire (v.). Originally of rifles.

Online Etymology Dictionary, © 2010 Douglas Harper