"the putting to death of Christ on the hill of Calvary," early 15c., crucifixioun, from Late Latin crucifixionem (nominative crucifixio), noun of action from past-participle stem of crucifigere "kill by crucifixion; fasten to a cross" (see crucify).
crucial
cruciate
crucible
cruciferous
crucifix
crucifixion
cruciform
crucify
cruciverbalist
crud
crude