P / perfrictĭo
noun

perfrictĭo

gen. perfrictōnis · gender feminine · decl. 3rd
a rubbing; abrasion
a rubbing, abrasion (post-Aug.), Veg. 1, 35, 1; 1, 38, 3.—Plur.: perfrictionibus cum oleo mederi, Plin. 21, 18, 69, § 116 (but perh. the same word as the preced. in the same meaning).