Etymologically

quantitas

Etymology and origin of the Latin word quantitas

Confidence
Established
Formation
Derivation, Calque
First attested
c. 84–c. 25 BC, Vitruvius
Ultimate origin
Latin quantus
Etymology tree
inherited borrowed derived
Latin quantus
Italian quanto
Latin quantitas
From the same root
Latin aliquantus ← quantus
Latin quantulus ← quantus
Latin quantuscumque ← quantus

Pronunciation

  • Classical: [ˈkʷan.tɪ.taːs][1]
  • Ecclesiastical: [ˈkʷan.ti.tas][1]

Forms

quantitās f (genitive quantitātis); third declension[1]

Etymology

It is from Latin quantus (“how great, how much”) + -tās.[2][1][3] It was made as a translation of Ancient Greek ποσότης (posótēs, “quantity”), from πόσος (pósos, “how great? how much?”),[4][1] like quālitās.[1] Wiktionary credits the coinage to Cicero,[1] although the earliest citation the OLD gives is from Vitruvius.[2]

Earliest recorded meaning

The OLD's and Köbler's first author is Vitruvius, who uses it of size, for example the size of the intervals between musical tones.[2][3]

Semantic evolution

Lewis & Short think it perhaps only post-Augustan.[5] Quintilian uses it as one of the ten categories, divided into how large and how many a thing is, and of the volume of the voice.[2][5] Pliny the Elder has it for an amount of moisture, and Apuleius for a large amount.[2]

The jurists used it for a specified amount, above all a sum of money,[2][5] and the logicians for the quantity of a proposition, whether universal or particular.[5][6] Boethius and Cassiodorus use it of the philosophical category.[7] Medieval Latin used it of the size of bodies, land and time, and in music of the duration of a note.[8]

It was borrowed into English as quantity in the early 14th century, partly through Old French ⟨quantite⟩;[4] Italian quantità also continues it.[7][4]

Timeline

  • c. 84–c. 25 BC – Vitruvius uses it of size and extent.[2][3]
  • c. 35–95/96 AD – Quintilian counts it among the ten categories.[2][3]
  • c. 125–175 AD – Apuleius uses it of a large amount.[2][3]
  • before 223 AD – Ulpian uses it of a sum of money.[2][3]
  • early 14th century – English borrows it as quantity.[4]

Meanings

Noun

  1. Magnitude, size, extent, degree.[2][5][6]
  2. A (specified) amount, quantity.[2][5]
  3. A sum of money.[2][5]
  4. A large quantity.[2]
  5. (logic) The quantity of a proposition, whether it is universal or particular.[5][6]
  6. (Medieval Latin, music) The duration of a note.[8]

Word family

  • quantitātīvus

References

  1. ^ a b c d e f g 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 e f Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  4. ^ a b c d Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ a b c d e f g h Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  6. ^ a b c Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  7. ^ a b Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
  8. ^ a b 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
Cite this entry

“Quantitas.” Etymologically, 23 Oct. 2026, etymologically.com/la/quantitas. Accessed 23 Oct. 2026.

Last edited on . ·