The Collaborative International Dictionary of English v.0.48:

Peplus \Pep"lus\ (p[e^]p"l[u^]s), n. [L., fr. Gr. pe`plos.]
   1. An upper garment worn by Grecian and Roman women.
      [1913 Webster]

   2. A kind of kerchief formerly worn by Englishwomen. [Obs.]
      --Fairholt.
      [1913 Webster]

WordNet (r) 3.0 (2006):

peplus
    n 1: a garment worn by women in ancient Greece; cloth caught at
         the shoulders and draped in folds to the waist [syn:
         peplos, peplus, peplum]