blench (v.)

"shrink, start back, give way; flinch, wince, dodge," c. 1200, extended sense from Old English blencan "deceive, cheat" (obsolete in the original sense), from Proto-Germanic *blenk- "to shine, dazzle, blind" (source also of Old Norse blekkja "delude"), from PIE root *bhel-(1) "to shine, flash, burn," also "shining white." Related: Blenched; blenching.

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