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ambiguus

Etymology and origin of the Latin word ambiguus

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Confidence
Established
Formation
Derivation
First attested
Plautus
Ultimate origin
Latin (ambigō)

Pronunciation

  • IPA (Classical): [amˈbɪ.ɡu.ʊs][1]
  • IPA (Ecclesiastical): [amˈbiː.ɡu.us][1]

Forms

ambiguus (feminine ambigua, neuter ambiguum, adverb ambiguē); first/second-declension adjective[1]

Etymology

It is from ambigō “to wander about; to waver, dispute” with the suffix -uus.[2][1][3] ⟨Ambigō⟩ is from amb- “around” and agō “to drive”.[3]

Earliest recorded meaning

The OLD's earliest citation is from Plautus, of a matter not yet decided.[2] Köbler dates Plautus c. 250–184 BC.[4]

Semantic evolution

It meant undecided, doubtful, and of people wavering, as in Tacitus.[2] Livy used it of an unsteady aim and of a battle whose outcome was in doubt, and Ovid of monsters of mixed form, and Virgil of what might be one thing or the other, even of either sex.[2] Varro used it of words with more than one meaning, and Virgil of untrustworthy people.[2]

Döderlein distinguishes dubius and ambiguus, doubt about success or failure, from anceps, doubt about whether something will be at all.[5] It survives in Italian and Spanish ambiguo, and gave English ambiguous in the 1520s, “of doubtful nature, open to various interpretations”.[1][3]

Timeline

  • c. 250–184 BC – Plautus uses it.[2][4]
  • 116–27 BC – Varro uses it of words with double meaning.[2][4]
  • 43 BC–18 AD – Ovid uses it of hybrid monsters.[2][4]
  • 1520s – English ambiguous is recorded.[3]

Meanings

Adjective

  1. Undecided, doubtful.[2]
  2. Wavering, hesitating.[2]
  3. Of uncertain outcome.[2]
  4. Of mixed form, hybrid.[2]
  5. Having more than one meaning, ambiguous.[2]
  6. Untrustworthy.[2]

Word family

  • ambiguitās
  • ambiguum
  • ambiguē
  • ambāgēs
  • ambigō
  • English ambiguous

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c d Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ Döderlein, Ludwig (1874), Döderlein’s Hand-book of Latin Synonymes, tr. H. H. Arnold, Andover: W. F. Draper
Cite this entry

“Ambiguus.” Etymologically, 16 Oct. 2026, etymologically.com/la/ambiguus. Accessed 16 Oct. 2026.

Last edited on . ·