P / per-subtīlis
adjective

per-subtīlis

neut. per-subtīle
very fine; delicate; very subtle
Lit., very fine or delicate, very subtle: animus persubtilis atque minutis Perquam corporibus factus, Lucr. 3, 179.—
very ingenious figuratively
Trop., very ingenious: oratio, Cic. Planc. 24, 58.