Etymologically

aequalis

Etymology and origin of the Latin word aequalis

Confidence
Established
Formation
Derivation
First attested
Ennius
Ultimate origin
Latin (aequus)
Etymology tree
inherited borrowed derived
Latin aequalis
English equal

Pronunciation

  • IPA (Classical): [ae̯ˈkʷaː.lɪs][1]
  • IPA (Ecclesiastical): [eˈkʷaː.lis][1]

Forms

aequālis (neuter aequāle, comparative aequālior, superlative aequālissimus, adverb aequāliter); third-declension two-termination adjective[1]

Etymology

It is from Latin aequus (“level, equal”) + -ālis.[2][3][4]

Earliest recorded meaning

Ennius, in a tragedy, has a speaker fear the girls of the same age.[2] Köbler dates Ennius 204–169 BC.[5]

Semantic evolution

Its early sense was of the same age, coeval, and as a noun a companion of one's own age or a contemporary, as Cicero uses it in the Brutus.[2][6] It also meant equal in size, amount or duration, as Cato's equal maniples, and symmetrical.[2] From there it meant equal in status or comparable in quality, level or even of a surface, and uniform or regular in texture, style or character: Horace says nothing was consistent in a certain man.[2] Applied to law it meant applying to all alike, as Cicero's equal right of the law.[2] The Vulgate uses it of Christ making himself equal to God.[7]

In medieval Latin it also meant level, smooth and straight, and as a noun a peer.[8][9] English equal is recorded in the late 14th century.[4]

Timeline

  • 204–169 BC – Ennius uses it of girls of the same age.[2][5]
  • 234–149 BC – Cato uses it of equal maniples.[2][5]
  • 81–43 BC – Cicero uses it of contemporaries.[2][5]
  • late 14th century – English equal is recorded.[4]

Meanings

Adjective

  1. Equal in size, amount or duration; symmetrical.[2][1]
  2. Of the same age; contemporary.[2][1]
  3. Equal in status; comparable, similar.[2]
  4. Level, even, smooth.[2][10]
  5. Uniform, regular, steady.[2][1]
  6. Applying to all alike.[2]

Noun

  1. A person of the same age, a companion; a contemporary.[2]
  2. An equal, (Medieval Latin) a peer.[2][9]

Word family

  • aequālitās
  • coaequālis
  • inaequālis
  • aequāliter
  • aequābilis
  • aequābilitās
  • aequātiō
  • aequātus
  • aequē
  • aequitās
  • aequiter
  • aequō
  • aequum
  • aequus
  • English equal

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n o p q Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  7. ^ Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  8. ^ Mittellateinisches Wörterbuch bis zum ausgehenden 13. Jahrhundert (1967–), Munich: C. H. Beck; Bayerische Akademie der Wissenschaften
  9. ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  10. ^ Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn

Borrowed into

Cite this entry

“Aequalis.” Etymologically, 15 Oct. 2026, etymologically.com/la/aequalis. Accessed 16 Oct. 2026.

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