What does congii mean?
Congii is the plural of congius, an ancient Roman unit of liquid capacity equivalent to six sextarii and amounting to roughly 3.4 litres, or about three-quarters of an Imperial gallon. Romans used the congius to measure commodities such as wine, oil, and vinegar, and it served as a standard vessel in commerce and household accounting. In modern English the word survives almost entirely within classical scholarship, archaeology, translations of Latin texts, and histories of ancient measurement, where writers may refer to quantities expressed as so many congii. Because it is a Latinate plural, some authors prefer the anglicised form 'congiuses', though 'congii' remains the traditional scholarly choice. The word is rare outside academic contexts but offers a precise window into how Romans quantified everyday liquids, making it a useful term for anyone engaging with Roman economic life, epigraphy, or the history of metrology.
nounCongii is the plural of 'congius', an ancient Roman unit of liquid capacity equal to six sextarii, approximately 3.4 litres (about three-quarters of a gallon). The term appears mainly in classical scholarship and historical discussions of Roman measurement.
- The plural of congius: an ancient Roman unit of liquid capacity equal to six sextarii, roughly 3.4 litres.
"The amphora held exactly four congii of wine."
"The cellar accounts recorded forty congii of olive oil delivered that month."
"Roman farm manuals specified manure applications in congii per field."
Since 'congii' is itself already a plural, it takes plural verbs and determiners; the singular is 'congius'.
"Three congii of wine were decanted into smaller flasks."
A single congius of Roman wine was about three modern bottles' worth — and Romans measured it all in congii.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of congii
The word derives from Latin 'congius', the name of a standard Roman liquid measure, which itself is of uncertain earlier origin though possibly Etruscan. It entered English through learned and scientific writing during the early modern period, when classical units were discussed in works on antiquities and metrology. Related Latin measures include the sextarius (one-sixth of a congius) and the amphora, a much larger container worth eight congii under one common reckoning.
Related word forms
How congii is actually used
Strictly a plural Latin form; in English prose it appears almost exclusively in classical, archaeological, or historical writing. Authors sometimes anglicise the plural as 'congiuses'.
Easily confused with congii
'Conga' is a Latin American dance or drum, whereas 'congii' is the plural of a Roman liquid measure.