An Etymological Dictionary of Astronomy and Astrophysics

A colored form of natural silica, SiO₂, which is a precious stone.

Etymology (EN): M.E. jaspe, jaspre, from M.Fr., O.Fr. jaspe,
from L. iaspidem (nominative iaspis), from Gk. iaspis “jasper,” via an Oriental language, probably an Eastern Iranian language, see below.

Etymology (PE): Yašm, variants, yasp, yasb, yašf “jasper;” Sogd. iešp “jasper,” iešpênê “of jasper, crystalline.”