PTŠeq 50.a:8[2] :עד ברכייא‏ : until the knees
See the entire entry for ˁaḏ prep. until

PTŠeq 50.a:8[2] :עד קרסולה‏ : (water) up to his ankle
See the entire entry for qarsūl, qarsūlā n.m. major joint in the limbs