[jas.per] n [ME jaspre, fr. MF, fr. L jaspis, fr. Gk iaspis, of Sem origin; akin to Heb yashepheh jasper] (14c) 1: an opaque cryptocrystalline quartz of any of several colors; esp: green chalcedony
2: colored stoneware with raised white decoration
3: a blackish green -- jas.pery adj