Etymologically

vagus

Etymology and origin of the Latin word vagus

Pronunciation

  • IPA (Classical): [ˈwa.ɡʊs][1]
  • IPA (Ecclesiastical): [ˈvaː.ɡus][1]

Forms

vagus (feminine vaga, neuter vagum, adverb vagē); first/second-declension adjective[1]

Etymology

The origin is uncertain.[1] De Vaan derives it from Proto-Italic *wago-, possibly inherited from Proto-Indo-European *Hwog-o-, comparing Germanic verbs for tottering or wavering, such as Old Norse vakka, Old High German wankōn (“to totter, stagger”) and Old English wincian (“to nod”), which could continue a nasal present *Hu-en-g-.[2][1] The OLD likewise compares Old Norse vakka (“to totter”) and Lithuanian vínguoti (“to make a detour”), and takes it to be related to vacillāre.[3] Lewis and Short connected it with vehere “to carry”, an older view.[4]

Earliest recorded meaning

It is attested from Naevius onwards.[2][5] Lucilius uses it of an exile who must “wander and live outside the law”.[3]

Semantic evolution

Its core sense was moving freely from place to place, said of exiles, nomads, flocks and birds,[3][4] and the planets were stellae vagae “wandering stars”.[3][6] From this it meant shifting or inconstant, of winds and the sea, and scattered, of troops spread over a wide area.[3] In Cicero and Seneca it described rambling speech and roundabout inquiry,[3] and it was used of rumours without a clear source and of fickle people and lovers.[3]

In Ecclesiastical Latin and canon law a vagus was a person without any fixed domicile,[7] and in medieval Latin the noun meant a wandering minstrel or scholar.[5] The figurative sense “indefinite” passed to French vague and English vague.[8]

Timeline

  • c. 235–200 BC – Naevius uses it.[2][5]
  • 81–43 BC – Cicero calls the planets stellae quasi vagae and calls a style of speech vagum.[3][6][5]
  • 86–34 BC – Sallust uses it of the nomadic Gaetulians.[3][5]
  • 4 BC–65 AD – Seneca says a life without a purpose is vaga.[3][5]
  • Middle Ages – As a noun it means a wandering minstrel or scholar.[5]
  • 1540s – Its French descendant gives English vague.[8]

Meanings

Adjective

  1. Wandering, roaming, roving; of nomads, unsettled.[3][4]
  2. stellae vagae: the planets.[3]
  3. Winding, changing direction.[3]
  4. Shifting, inconstant, as of winds and waves.[3]
  5. Scattered over a wide area; uncoordinated.[3]
  6. (of speech or inquiry) Rambling, roundabout.[3]
  7. Haphazard, aimless.[3]
  8. Not definite, not assignable to a source, as of rumours.[3]
  9. Fickle, changeable, wavering.[3]
  10. (Ecclesiastical Latin, as a noun) A person without a domicile, a vagrant.[7]

Word family

  • arēnivagus
  • circumvagus
  • flūctivagus
  • harēnivagus
  • ignivagus
  • lūdivagus
  • lustrivagus
  • montivagus
  • multivagus
  • mundivagus
  • nemorivagus
  • noctivagus
  • vagor

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ 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
  3. ^ a b c d e f g h i j k l m n o p q r s Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  4. ^ a b c Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  5. ^ a b c d e f g Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ a b Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  7. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  8. ^ a b Harper, Douglas, Online Etymology Dictionary, https://www.etymonline.com

Related etymologies

  • hospes · also from Proto-Indo-European
  • verbum · also from Proto-Indo-European
  • ignis · also from Proto-Indo-European
  • mors · also from Proto-Indo-European
  • sal · also from Proto-Indo-European
  • rex · also from Proto-Indo-European
  • equus · also from Proto-Indo-European
  • pater · also from Proto-Indo-European
Cite this entry

“Vagus.” Etymologically, 10 Oct. 2026, etymologically.com/la/vagus. Accessed 10 Oct. 2026.

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