Etymology and origin of the Latin word semuncia
- Confidence
- Established
- Formation
- Compound
- First attested
- 234–149 BC, Cato
- Ultimate origin
- Latin (ūncia)
Forms
sēmū̆ncia f (genitive sēmū̆nciae); first declension[1]
Etymology
It is from Latin sēmi- (“half”) + ūncia (“a twelfth, ounce”).[2][1][3] Varro explains it as half of that unit.[2][4] De Vaan lists ūncia among the derivatives of ūnus (“one”), and traces the prefix to Proto-Indo-European *sēm-i (“in one”), whose meaning shifted to “half”.[5]
Earliest recorded meaning
The earliest instances the OLD cites are in Cato, who lists sēmunciae among the equipment of olive orchards and vineyards, an item it cannot identify;[2] Köbler records the word first in Varro.[3]
Semantic evolution
As a fraction of the Roman duodecimal system it meant one twenty-fourth of any whole: Cicero has an heir to eleven twelfths and a twenty-fourth, ex deunce et sēmunciā, and Pliny the Elder speaks of twenty-fourths of hours.[4] As a weight it was one twenty-fourth of a pound, half an ounce: Cicero has a praetor's ring made from in aurī sēmunciā, half an ounce of gold, and Livy reports a law that no woman should own more than half an ounce of gold.[2] As a coin it was one twenty-fourth of an as, and Asconius uses it hyperbolically of goods sold for next to nothing.[2]
Columella uses it for one twenty-fourth of a iugerum, and Tacitus, in the plural, of a rate of interest.[2] Persius uses it figuratively of the smallest amount, half an ounce of right.[2]
Timeline
- 234–149 BC – Cato lists sēmunciae among farm equipment.[2][3]
- 116–27 BC – Varro defines it as half an ūncia.[2][3]
- 81–43 BC – Cicero uses it of half an ounce of gold and of a twenty-fourth share of an inheritance.[2][4]
- 34–62 AD – Persius uses it figuratively of a minimal amount.[2]
- 1st century AD – Columella uses it of a twenty-fourth of a iugerum.[2]
- 98–115 AD – Tacitus uses the plural for a rate of interest.[2]
Meanings
Noun
- One twenty-fourth of anything.[2][4]
- A weight of one twenty-fourth of a libra, half an ounce;[2] (figurative) a minimal amount.[2]
- A coin worth one twenty-fourth of an as.[2]
- One twenty-fourth of a iugerum.[2]
- (plural) A rate of interest.[2]
- An unidentified item of equipment for olive orchards and vineyards.[2]
Word family
- semuncialis
- sēmunciārius
Related words
- ūncia
- sēmis
References
- ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h i j k l m n o p q r s t Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ a b c d Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
Cite this entry
“Semuncia.” Etymologically, 20 Oct. 2026, etymologically.com/la/semuncia. Accessed 20 Oct. 2026.
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