congius

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noun

A Roman unit of liquid measure reckoned as the volume of 10 Roman pounds of wine and equivalent to about 3.3 L although differing slightly over time.

Similar
Roman gallongalloncongycongeImperial gallon
OriginLatin congius ← Ancient Greek κογχίον →
Scrabble 10
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Meanings

nouncongius (plural congiuses or congii)

plural congiuses · plural congii

  1. historicalA Roman unit of liquid measure reckoned as the volume of 10 Roman pounds of wine and equivalent to about 3.3 L although differing slightly over time.
  2. historicalA Roman unit of mass instituted by Vespasian equivalent to about 3.3 kg, the weight of a congius of water.

Synonyms & antonyms

Similar
Roman gallongalloncongyconge

nouna British imperial capacity measure (liquid or dry) equal to 4 quarts or 4.545 liters

Similar
gallonImperial gallon
Broader
British capacity unitImperial capacity unit
Also see
congygallonimperial gallonroman gallon

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Ancient Greekκογχίον
  2. Latincongius
  3. Englishcongius

From Latin congius, from Ancient Greek κογχίον (konkhíon), from κόγχη (kónkhē) and κόγχος (kónkhos, “mussel shell”) + -ίον (-íon, forming diminutives).

More words from Latin, Ancient Greek

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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