PTHag 77.d:50[2] :צירא דתרעא דגיהנם‏ : the hinge of the gate of hell
See the entire entry for gyhnm n.m. Hell, Gehenna

PTHag 77.d:50[2] :צירא דתרעא דגיהנם‏ : the hinge of the gate of Hell
See the entire entry for ṣīr, ṣīrā n.m. hinge, pivot