P / prōtŏcŏmĭum
noun

prōtŏcŏmĭum

gen. prōtŏcŏmi · gender neuter · decl. 2nd
= πρωτοκόμιον
the place where the hair begins
the place where the hair begins, Veg. Vet. 2, 11 dub. (al. procomion).