Etymologically

Etymology and origin of the Latin word paritas

Confidence
Established
Formation
Derivation
First attested
297–310 Arnobius
Ultimate origin
Latin pār
Etymology tree
inherited borrowed derived
Latin pār
Italian paio
Spanish par
Dutch paar
English par
Latin paritās
English parity
From the same root
English umpire ← pār
Latin compār ← pār
Latin dispār ← pār
Latin impār ← pār
Latin pariter ← pār

Pronunciation

  • Classical: [ˈpa.rɪ.taːs][1]
  • Ecclesiastical: [ˈpaː.ri.tas][1]

Forms

paritās f (genitive paritātis); third declension[1]

Etymology

It is formed from Latin pār (“equal”) + -tās,[1][2] and is a Late Latin word.[3][4]

Earliest recorded meaning

Its first author is Arnobius (297–310),[5][4] who writes that equality cannot be contained in what is unequal.[4]

Semantic evolution

In arithmetic it meant the evenness of a number that can be divided into two equal parts, in Martianus Capella and Boethius.[6][7][2]

Medieval Latin used it for equality in size, number or proportion, for equality of condition, rank or power, and for uniformity.[3] With the rise of the peers it also meant peerage, the rank of a peer:[8][3] in a letter of 1264 the English king appeals to the archbishop of Reims on the ground of his peerage in France.[3] It is the source of Italian parità.[7]

Timeline

  • 297–310 AD – Arnobius uses it for equality.[5][4]
  • 5th century AD – Martianus Capella uses it for the evenness of a number.[7][5]
  • first quarter of the 6th century AD – Boethius uses it in his Arithmetic.[2][5]
  • 1264 – An English royal letter uses it for the rank of a peer of France.[3]
  • 1570s – Borrowed into English, from French or directly from Late Latin, as parity.[9]

Meanings

Noun

  1. (Late Latin) equality, parity.[4][2][10]
  2. (Late Latin, arithmetic) The evenness of a number.[6][7]
  3. (Medieval Latin) Equality of condition, dignity or power.[3]
  4. (Medieval Latin) Uniformity.[3]
  5. (Medieval Latin) peerage, the rank of a peer.[8][3]

Usage notes

Du Cange glosses it with parilitas, the word Gellius used for equality.[11]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  3. ^ a b c d e f g h Latham, R. E., D. R. Howlett, R. K. Ashdowne, et al. (1975–2013), Dictionary of Medieval Latin from British Sources, London: British Academy / Oxford University Press
  4. ^ a b c d e Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  5. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ a b Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  7. ^ a b c d Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
  8. ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  9. ^ Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  10. ^ Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  11. ^ du Cange, Charles du Fresne, et al. (1883–1887), Glossarium mediae et infimae latinitatis, augmented ed. by Léopold Favre, Niort: L. Favre

Borrowed into

Cite this entry

“Paritas.” Etymologically, 7 Nov. 2026, etymologically.com/la/paritas. Accessed 7 Nov. 2026.

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