BT Šab 152a(15) :דוק בככי ותשכח בניגרי‏ : grind (food) with the molars, and you will find (the results) in the feet
See the entire entry for kaḵ, kakkā n.m. molar

BT Šab 152a(15) :דוק בככי ותשכח בניגרי‏ : grind (food) with the molars, and you will find (the results) in the feet
See the entire entry for *nəḡer, niḡra/liḡrā n.f. foot; step