Flinch is defined as to make a quick motion of the body moving away out of surprise or fear.(verb)
See flinch in Webster's New World College Dictionary
Origin: earlier also flench < OFr flenchir, to bend aside < Frank *hlankjan, akin to Ger lenken, OE hlencan, to twist, bend: see lank
See flinch in American Heritage Dictionary 4
intransitive verb flinched, flinch·ing, flinch·es
Origin: Obsolete French flenchir
Origin: , of Germanic origin.
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