cyathus

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noun

An ancient Roman unit of liquid measure reckoned as the volume of 1+²⁄₃ Roman ounce of wine and equivalent to about 45 mL although differing slightly over time.

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Scrabble 15

Meanings

nouncyathus (plural cyathuses or cyathi)

plural cyathuses · plural cyathi

  1. historicalAn ancient Roman unit of liquid measure reckoned as the volume of 1+²⁄₃ Roman ounce of wine and equivalent to about 45 mL although differing slightly over time.

    Synonyms: Roman cup, cup, cupful

  2. A ladle, especially (historical) a small one used for serving wine in ancient Greece and Rome.
  3. historicalSynonym of kyathos (“an ancient ladle and serving beaker”).

    Synonyms: kyathos

Synonyms & antonyms

nounAn ancient Roman unit of liquid measure reckoned as the volume of 1+²⁄₃ Roman ounce of wine and equivalent to about 45 mL although differing slightly over time.

Similar
Roman cupcupcupful

nounSynonym of kyathos (“an ancient ladle and serving beaker”).

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Also see

Origin

  1. Ancient Greekκύαθος“ladle”
  2. Latincyathus
  3. Englishcyathus

From Latin cyathus, from Ancient Greek κύαθος (kúathos, “ladle”), of uncertain origin. Doublet of kyathos.

Full word history & related roots →
Cite this entry
APA

cyathus. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/cyathus

MLA

“cyathus.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cyathus. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “cyathus,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/cyathus.

Source: cyathus on Wiktionary, CC BY-SA 4.0.