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Borrowed from Latin sardonyx.


sardonyx (countable and uncountable, plural sardonyxes)

  1. A gemstone having bands of red sard; a variety of onyx or chalcedony.
    • Bible, Revelation xxi. 20
      The fifth, sardonyx; the sixth, sardius; the seventh, chrysolyte; the eighth, beryl; the ninth, a topaz; the tenth, a chrysoprasus; the eleventh, a jacinth; the twelfth, an amethyst.
    • 1980, Colin Thubron, Seafarers: The Venetians, page 40:
      The large chalice at right is carved from a single chunk of sardonyx, a kind of onyx. Its gilded rim and base are decorated with tiny enamels depicting a host of popular saints, including Nicephorus (farthest left on rim), a Ninth Century patriarch and opponent of a religious movement to destroy icons.


Further reading[edit]



From the Ancient Greek σαρδόνυξ m (sardónux).



sardonyx m, f (genitive sardonychos or sardonychis); third declension

  1. sardonyx


Third declension, Greek type.
Case Singular Plural
nominative sardonyx sardonyches
genitive sardonychos sardonychum
dative sardonychī sardonychibus
accusative sardonycha sardonychas
ablative sardonyche sardonychibus
vocative sardonyx sardonyches
Third declension.
Case Singular Plural
nominative sardonyx sardonychēs
genitive sardonychis sardonychum
dative sardonychī sardonychibus
accusative sardonychem sardonychēs
ablative sardonyche sardonychibus
vocative sardonyx sardonychēs

Derived terms[edit]



  • sardŏnyx in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
  • sardonyx in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
  • sardŏnyx in Gaffiot, Félix (1934) Dictionnaire Illustré Latin-Français [Illustrated Latin-French Dictionary], Hachette, page 1,393/1
  • sardonyx in William Smith, editor (1854, 1857) A Dictionary of Greek and Roman Geography, volume 1 & 2, London: Walton and Maberly
  • sardonyx” on page 1,691/3 of the Oxford Latin Dictionary (1st ed., 1968–82)