Etymologically

prolongatio

Etymology and origin of the Latin word prolongatio

Confidence
Established
Formation
Derivation
First attested
383–420 Jerome More words from the 4th century
Ultimate origin
Latin prōlongō
Etymology tree
inherited borrowed derived
Latin longus
Aromanian lungu
Aromanian ningã
French long
Italian lungo
Latin prōlongō
English prolong
Latin prōlongātiō
English prolongation
From the same root
Latin ēlongō ← longus
Latin longaevus ← longus
Latin longē ← longus
Latin longiter ← longus
Latin longitūdō ← longus
Latin longurius ← longus
Latin praelongus ← longus
French allonger ← long
French longtemps ← long

Forms

prōlongātiō f (genitive prōlongātiōnis); third declension[1]

Etymology

It is from Latin prōlongō (“to prolong”) with the suffix -tiō.[2][3][4] Wiktionary analyses it as from Latin prōlongātus + -tiō, from the past participle of the same verb.[1]

Earliest recorded meaning

It first appears in Jerome (c. 383–419/420 AD), who uses it in explaining Hebrew names: he renders the name Mosoch as “prolongation or failing”.[2][4]

Semantic evolution

In Late Latin it also meant length or long duration in a more definite sense.[2] In medieval documents it was the extension of a set time, such as a holiday, a truce or a life,[3] and in law a postponement or delay.[5][3]

English borrowed it in the late 14th century, partly through Old French.[6]

Timeline

  • c. 383–419/420 AD – Jerome uses it in his explanations of Hebrew names.[2][4]
  • 1120 – A charter grants an extension of a holiday.[3]
  • 1279 – A letter asks for debts to be paid without delay.[3]
  • late 14th century – Borrowed into English as prolongation, from Old French and directly from Medieval Latin.[6]

Meanings

Noun

  1. (Late Latin) Lengthening, prolongation.[1][2][4]
  2. (Late Latin) Length of time, long duration.[2]
  3. (Medieval Latin) Extension of a term or period.[3][5]
  4. (Medieval Latin, law) Postponement, delay.[5][3]

References

  1. ^ a b c Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  3. ^ a b c d e f g 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 Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ a b c Lexicon mediae et infimae Latinitatis Polonorum (1953–), Kraków: Instytut Języka Polskiego PAN; electronic ed. elexicon.scriptores.pl
  6. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
Cite this entry

“Prolongatio.” Etymologically, 8 Nov. 2026, etymologically.com/la/prolongatio. Accessed 8 Nov. 2026.

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