Lewis & Short

pĭper, pĭpĕris, n., = πέπερι (Sanscr. pippali or pippalī, the same), pepper.

  1. I. Lit., Plin. 12, 7, 14, § 26 sq.; Cels. 2, 27: et piper et quicquid chartis amicitur ineptis, Hor. Ep. 2, 1, 270; Ov. A. A. 2, 417; Juv. 14, 293: rugosum piper, Pers. 5, 55: sacrum piper, a term intimating that the miser is as sparing of it as if it were something sacred, id. 6, 21.
  2. II. Trop., of sharp, biting speech: piper, non homo, Petr. 44; Hier. Ep. 31, n. 2.