perstrictio

perstrictĭo, ōnis, f. [perstringo],

• a rubbing, friction (post-class.), Veg. Vet. 1, 35; so id. ib. 1, 38.—
• II Trop., a verbal attack: de perstrictione diversae partis nihil cavetur, Paul. Sent. 5, 4, 15.