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A cockatrice on a coat of arms.


First attested 1382 as Middle English cocatrice (basilisk), from Old French cocatriz, from Late Latin calcātrīx (she who treads upon something), from Latin calcō (tread), from calx (heel, hoof).


  • IPA(key): /ˈkɒkətraɪs/, /ˈkɒkətrɪs/


cockatrice (plural cockatrices)

  1. (mythology) A legendary creature about the size and shape of a dragon or wyvern, but in appearance resembling a giant rooster, with some lizard-like characteristics.
    Hypernym: chimera
    Coordinate terms: basilisk, wyvern
    • c. 1910, Joseph Walker McSpadden, The Spell of Egypt:
      “Peace reigns in happy Luxor. The lion lies down with the lamb, and the child, if it will, may harmlessly put its hand into the cockatrice’s den.”
  2. (obsolete) Mistress, harlot.
  3. (fantasy, folklore) A snake or serpent that appears to be hatched from a rooster, or cock's, egg.
  4. (speculated) The cobra. (Can we add an example for this sense?)
  5. (obsolete, figurative) Any venomous or deadly thing.


See also[edit]


  • For meaning "mistress": 1949, John Dover Wilson (compiler), Life in Shakespeare's England. A Book of Elizabethan Prose, Cambridge at the University Press. 1st ed. 1911, 2nd ed. 1913, 8th reprint. In Glossary and Notes
  • For meaning "a snake of a chicken's egg:" 1828, Noah Webster, American Dictionary of the English language.
  • For "cobra:" an article, “Cockatrice” or “Adder” in Isaiah 11:8 et al.?

Further reading[edit]