Etymology and origin of the Latin word postumus
- Confidence
- Established
- Formation
- Derivation
- First attested
- c. 250–184 BC Plautus More words from the 3rd century BC
- Ultimate origin
- Latin post
From the same root
Forms
postumus (superlative, feminine postuma, neuter postumum); first/second declension[1] Köbler also records the spellings posthumus and postomius.[2]
Etymology
It is from Latin post (“after, behind”), with the superlative ending also found in īnfimus.[3] De Vaan lists it with posterus, posterior and postrēmus among the derivatives of post,[4] and Lewis & Short and Georges treat it as the superlative of posterus.[5][6] Wiktionary reconstructs Proto-Italic *postəmmos and compares the Oscan forms posmom and 𐌐𐌖𐌔𐌕𐌌𐌀𐌔 (pustmas).[1]
De Vaan traces post itself to Proto-Italic *posti (“behind, after”) and Proto-Indo-European *pos(ti) (“after”), the primary form being *pos, extended with *-ti.[4]
Earliest recorded meaning
Plautus already has it: Köbler records the noun for a late-born child from him, and de Vaan the personal name Postumus.[2][4] The adjective is found from Cicero on, meaning “last-born, final”.[4]
Semantic evolution
Its first sense was “last-born”: Virgil speaks of a postuma proles whom Lavinia will bring up for a father in his old age.[3][7] In law it named a child born after the father's death, which Ulpian restricts to those born after a parent's death, and a child born after a will had been made, who had to be named as heir.[3] From “last-born” it widened to “last, final”, as in Apuleius' postumae spei, “of a last hope”;[3] Apuleius also uses it of someone outliving himself, and Tertullian of what comes after death.[3][8]
Medieval glossaries render it with Old English words for a child born after the father's death, and British writers used it of such children and, by extension, as a byname.[9] Ecclesiastical Latin also kept the sense “last, hindmost”.[10] The spelling posthumus, from an association with humō (“to bury”) in Late Latin, gave English posthumous.[11]
Timeline
- c. 250–184 BC – Plautus uses it as a noun for a late-born child.[2]
- 81–43 BC – Cicero uses it as a noun for a child born after a will was made.[3][2]
- 116–27 BC – Varro uses it of a child born after the father's death.[7][8][2]
- 70–19 BC – Virgil uses it for a last-born son.[3][2]
- c. 125–175 AD – Apuleius uses it in the sense “last, final”.[3][2]
- before 223 AD – Ulpian defines postumi as those born after the death of a parent.[3][2]
- mid-15th century – English borrows posthumus as posthumous.[11]
Meanings
Adjective
- Last-born, born late in the parents' life.[3][12]
- (law) Born after the father's death, posthumous; as a noun, a posthumous child.[3][7][1]
- (law) Born after the making of a will.[3]
- Last, final.[3][7][10]
- Coming after death; surviving.[8]
Word family
- postumo
Related words
Usage notes
As a personal name, Postumus was first a praenomen and later a cognomen;[3] Ovid uses the vocative Postume for a man named Postumius.[3] Bearers include M. Curtius Postumus, a friend of Cicero, C. Rabirius Postumus, whom Cicero defended, and the Ursidius Postumus addressed in Juvenal's sixth satire.[5]
References
- ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ a b c d e f g h i j k l m n o Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b c d de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
- ^ a b Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
- ^ a b c d Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
- ^ a b c Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
- ^ 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
- ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
- ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
- ^ Lewis, Charlton T. (1890), An Elementary Latin Dictionary, New York: American Book Company
Cite this entry
“Postumus.” Etymologically, 14 Nov. 2026, etymologically.com/la/postumus. Accessed 14 Nov. 2026.
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