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summum

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Etymology and origin of the Latin word summum

Confidence
Established
Formation
Derivation
First attested
234–149 BC, Cato
Ultimate origin
Proto-Indo-European (*(h₁)up-m(H)o-)

Pronunciation

  • Classical: [ˈsʊm.mũː][1]
  • Ecclesiastical: [ˈsum.mum][1]

Forms

summum n (genitive summī); second declension[1]

Etymology

It is the neuter of summus (“highest”), used as a noun and as an adverb.[2][1] De Vaan traces ⟨summus⟩ to Proto-Italic *sup(a)mo- (“highest”) and Proto-Indo-European *(h₁)up-m(H)o- (“highest”), cognate with Umbrian somo (“upper”), Sanskrit उपम (upamá-, “uppermost”) and Ancient Greek ὕπατος (húpatos, “highest”).[3]

Earliest recorded meaning

Cato, De agri cultura: a vat should have four handles at the top (ad summum).[2]

Semantic evolution

As a noun it is the highest point, top or summit (Cicero's staff bent slightly at the top), the surface of the ground or of water, and the last part or final stage: Quintilian says the judge must be moved at the start and driven at the end.[2] It is also the highest degree or height of something, as in Seneca's men placed at the summit of human fortune.[2] As an adverb it means “at most”, as Cicero's two or at most three days to cover seven hundred miles, and once, in the Epicedion Drusi, “for the last time”.[2]

English summit comes from it through Old French som and its diminutive somete.[4]

Timeline

  • 234–149 BC – Cato: “at the top”.[2][5]
  • 81–43 BC – Cicero, adverb, “at most”.[2][5]
  • c. 35–95/96 AD – Quintilian of the end of a speech.[2][5]
  • c. 1400 – English summit, through Old French.[4]

Meanings

Noun

  1. The highest point, top, summit.[2][1]
  2. The surface (of the ground or of water).[2]
  3. The last part, end.[2]
  4. The highest degree, height.[2]

Adverb

  1. At most, at the outside.[2]
  2. For the last time.[2]

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. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  4. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry

“Summum.” Etymologically, 18 Oct. 2026, etymologically.com/la/summum. Accessed 19 Oct. 2026.

Last edited on . ·