Etymology and origin of the Latin word aquilus
- Confidence
- Probable
- Formation
- Derivation
- First attested
- c. 250–184 BC, Plautus
- Ultimate origin
- Latin aqua
Forms
aquilus (feminine aquila, neuter aquilum); first/second-declension adjective[1]
Etymology
The origin is uncertain.[2][3] The OLD and de Vaan take it as probably from Latin aqua (“water”), as the Romans did;[4][5] de Vaan prefers this to a derivation from aquila (“eagle”), proposed by Cohen.[5] Wiktionary adds that Ernout and Meillet rejected the link with water and that Pokorny relates aquilō (“the north wind”) as well.[1]
Earliest recorded meaning
Its first author is Plautus, who describes someone corpore aquilō, “with a dark body”.[4][3][5]
Semantic evolution
It was always a rare word.[3] Lucilius has it,[4] and the Festus excerpts define the colour as dusky and blackish.[4][3] Suetonius describes a complexion inter aquilum candidumque, “between dark and fair”, Apuleius uses it of a dark column of low clouds, and Arnobius of boys.[4][6] Martianus Capella applies it to the gods of death and the underworld.[6]
Medieval glossaries render it by Old English brūn.[7] By confusion with aquila it could also mean hooked like an eagle's beak, of a nose, and by confusion with aquilō northern.[8]
Timeline
- c. 250–184 BC – Plautus uses it of a dark body.[4][7]
- c. 75–c. 150 AD – Suetonius uses it of a complexion.[4][7]
- c. 125–175 AD – Apuleius uses it of dark clouds.[4][7]
Meanings
Adjective
- Dark-coloured, dusky, swarthy.[4][3][9]
- (Medieval Latin) Hooked like an eagle's beak, aquiline;[8][7] (by error) northern.[8][7]
Word family
- subaquilus
Related words
References
- ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
- ^ a b c d e Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b c d e f g h i Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b c 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 Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
- ^ a b c d e f Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ a b c Mittellateinisches Wörterbuch bis zum ausgehenden 13. Jahrhundert (1967–), Munich: C. H. Beck; Bayerische Akademie der Wissenschaften
- ^ Simpson, D. P. (1959), Cassell's New Latin Dictionary, London: Cassell
Cite this entry
“Aquilus.” Etymologically, 23 Oct. 2026, etymologically.com/la/aquilus. Accessed 23 Oct. 2026.
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