triclavianismEtymologyFrom tri- + Latin clavus (“nail”) + -ian + -ism, coined by George Stanley Faber in 1838.triclavianism means The belief that three nails were used in the crucifixion of Jesus Christ. Lexicurio rates it Rare gem — a strength score of 82 out of 100.nounThe belief that three nails were used in the crucifixion of Jesus Christ.