cran

notch; safety catch; hole; wave; guts, bottle, courage

“Ce garçon a du cran, pour oser sauter en parachute.” — That boy has guts to dare do a parachute jump.

Deverbal of créner (“to kern”), from crenedes (“notched”), from Vulgar Latin *crinare, probably of Celtic/Gaulish origin, from Proto-Celtic *krini-, from Proto-Indo-European *krey- (“to divide, separate”). Or, less likely, from Latin cernō (“to separate”), itself from the same root.