- Confidence
- Established
- Formation
- Borrowing
- First attested
- Naevius
- From
- Proto-Italic *gʷōs
- Ultimate origin
- Proto-Indo-European (*gʷṓws)
Pronunciation
Forms
bōs m or f (genitive bovis); irregular, third declension[1]
Etymology
It is from Proto-Italic *gʷōs, from Proto-Indo-European *gʷṓws (“cow”).[2][1] The regular Latin outcome would be *vōs or *ūs, so the initial ⟨b⟩ is generally thought to come from a Sabellic dialect, in which *gʷ became /b/, as in Umbrian bum (“ox”).[2][1][3] Cognate with Ancient Greek βοῦς (boûs, “ox”), Sanskrit गो (gó, “cow”) and Old English cū (English cow).[1][4]
Earliest recorded meaning
De Vaan and Köbler date it from Naevius.[2][5] Köbler dates Naevius c. 235–200 BC.[5]
Semantic evolution
It was a bovine animal, an ox, bull or cow, and in the plural cattle.[4][2] Caesar uses it of the reindeer, which he describes wrongly, and bōs Lūca “Lucanian ox” was the old name for the elephant.[4] It also named a fish, perhaps the ox-ray.[4] The inflection was irregular, with forms such as bovum, bovērum, bōbus and būbus.[2][4] The proverb bovī clītellās impōnere “to put a pack-saddle on an ox” meant to give someone a task unsuited to him.[6]
In medieval British Latin it was especially the plough ox.[7] Through Old French buef it gave English beef about 1300, and Late Latin bovīnus gave English bovine.[3]
Timeline
- c. 235–200 BC – Naevius uses it.[2][5]
- c. 250–184 BC – Plautus asks whether there are no oxen to look after in the country.[4][5]
- c. 50 BC – Caesar describes the reindeer as an ox.[4][5]
- c. 1300 – English beef is recorded.[3]
Meanings
Noun
- An ox, bull or cow, (plural) cattle.[4][2]
- An animal thought to resemble an ox, bōs Lūca, an elephant.[4]
- A fish, perhaps the ox-ray.[4]
Word family
- boārius
- bovātim
- bovicīdium
- bovīle
- bovīlis
- bovīllus
- bovīnor
- bovīnus
- būbulus
- būcaeda
- būcina
- būculus
Related words
- English beef
- English bovine
References
- ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
- ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
- ^ a b c d e f g h i j Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
- ^ Latham, R. E., D. R. Howlett, R. K. Ashdowne, et al. (1975–2013), Dictionary of Medieval Latin from British Sources, London: British Academy / Oxford University Press
Derived terms
Related etymologies
Cite this entry
“Bos.” Etymologically, 16 Oct. 2026, etymologically.com/la/bos. Accessed 16 Oct. 2026.
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