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mid-14c., from Old French crevace (12c., Modern French crevasse) "gap, rift, crack" (also, vulgarly, "the female pudenda"), from Vulgar Latin *crepacia, from Latin crepare "to crack, creak;" meaning shifted from the sound of breaking to the resulting fissure.
crevice crev·ice (krěv'ĭs)
A narrow crack, fissure, or cleft.