Etymologically

aequivocus

Etymology and origin of the Latin word aequivocus

Confidence
Established
Formation
Compound
First attested
354–430 Augustine More words from the 4th century
Ultimate origin
Latin aequus,vocō
Etymology tree
inherited borrowed derived
Latin aequus
Latin aequivocus
From the same root
Latin aequaevus ← aequus
Latin aequālis ← aequus
Latin aequanimitās ← aequus
Latin aequanimus ← aequus
Latin aequē ← aequus
Latin aequinoctium ← aequus
Latin aequitās ← aequus
Latin aequiter ← aequus
Latin aequivaleō ← aequus
Latin aequō ← aequus
Latin aequor ← aequus
Latin aequum ← aequus
Latin inīquus ← aequus

Pronunciation

  • Classical: [ae̯ˈkʷɪ.wɔ.kʊs][1]
  • Ecclesiastical: [eˈkʷiː.vo.kus][1]

Forms

aequivocus (feminine aequivoca, neuter aequivocum); first/second-declension adjective[1]

Etymology

It is formed from Latin aequus (“equal”) + vocō (“to call”),[2][3][4] or, in Wiktionary's analysis, from aequus with the connecting vowel ⟨-i-⟩ and ⟨-vocus⟩ “having meaning”.[1] The TLL explains it as “called alike”.[5]

Earliest recorded meaning

Augustine uses it in his work on dialectic for things that share a name but must be defined differently, and elsewhere equates aequivoca with homonyms.[5]

Semantic evolution

A term of logic and grammar, it describes words that sound alike but differ in meaning, the opposite of univoca.[5][2] Martianus Capella and Isidore of Seville have it,[2][5] and Boethius uses it constantly in his logical works;[5] Quintilian had used the Greek word homonyma for the same thing.[5]

In Medieval Latin it kept the sense “alike only in name, ambiguous”, and also meant having the same personal name;[6] as a noun it was a namesake.[7][3] English took equivocal from it around 1600.[4]

Timeline

  • 354–430 AD – Augustine uses it of words alike in name but different in definition.[5][3]
  • c. 560–636 AD – Isidore of Seville discusses verba aequivoca.[2][3]
  • c. 1600 – English forms equivocal from it.[4]

Meanings

Adjective

  1. (grammar, logic) Having the same name but a different meaning; equivocal, ambiguous.[2][5][6]
  2. (Medieval Latin) Having the same personal name.[6]

Noun

  1. (Medieval Latin) A namesake.[7]
  • English equivocal

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  3. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  4. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ a b c d e f g h Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  6. ^ a b c Mittellateinisches Wörterbuch bis zum ausgehenden 13. Jahrhundert (1967–), Munich: C. H. Beck; Bayerische Akademie der Wissenschaften
  7. ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
Cite this entry

“Aequivocus.” Etymologically, 13 Nov. 2026, etymologically.com/la/aequivocus. Accessed 14 Nov. 2026.

Last edited on . ·