per·i·dot (pĕrĭ-dŏt′, -dō′)
A yellowish-green variety of olivine used as a gem.
[Middle English, from Anglo-Norman peridout, from Medieval Latin peridotus, from alteration of Latin paederōs, paederōt-, a kind of gemstone, from Greek paiderōs paiderōt- (literally, "boy-love"), a kind of plant (perhaps a species of hawthorn) offered to Aphrodite, a kind of gemstone used as a love charm : Greek pais, paid-, child, boy; see pau-1 in the Appendix of Indo-European roots + Greek erōs, erōt-, erotic love.]
per′i·dotic (-dŏtĭk, -dōtĭk) adj.
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Indo-European & Semitic Roots Appendices
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