Leg
New TestamentVine's Expository Dictionary of Biblical Words
Definition
1skelosG4628
"the leg from the hip downwards," is used only of the breaking of the "legs" of the crucified malefactors, to hasten their death, Joh 1:19-33 (a customary act, not carried out in the case of Christ, in fullfillment of Exo 12:46, Num 9:12). The practice was known as skelokopia (from kopto, "to stike"), or, in Latin, crurifragium (from crus, "a leg," and frango, "to break").