Etymologically

Etymology and origin of the Latin word senium

Confidence
Established
Formation
Derivation
First attested
c. 250–184 BC, Plautus
Ultimate origin
Proto-Indo-European (*sen-)
Etymology tree
inherited borrowed derived
Latin senex
Latin senilis
Latin senium
Latin senectus

Pronunciation

  • Classical: [ˈsɛ.ni.ũː][1]
  • Ecclesiastical: [ˈsɛː.ni.um][1]

Forms

senium n (genitive seniī or senī); second declension[1]

Etymology

The OLD derives it from Latin senex (“old man”) + -ium;[2][3] Lewis & Short connect it with seneō (“to be old”).[2][3] De Vaan lists it among the derivatives of senex, and notes it may be formed from an o-stem noun, like senīlis.[4] He traces the family to Proto-Italic *seno- (“old; old man”) and Proto-Indo-European *sen-(o-) (“old”), comparing Old Irish sen (“old”), Sanskrit सन (sána-, “old”), Ancient Greek ἕνος (hénos, “old, of last year”) and Lithuanian sẽnas (“old”).[4]

Earliest recorded meaning

De Vaan and Köbler date it from Plautus.[4][5] The OLD's earliest quotation is from Ennius, of a brave horse that rests, worn out by old age.[2]

Semantic evolution

It is the condition of old age, usually with the idea of decay: Cicero writes of a work free from all disease and decay.[3] It can be the period of old age itself, as in Lucan, and in Statius the long course of an age.[2] Early on it also meant gloom and melancholy, or a cause of grief: Pacuvius lists it with fear, want and sorrow.[2] Wiktionary gives a rare use for an old man.[1] Church Latin glosses it senility.[6]

Timeline

  • c. 250–184 BC – Plautus uses it.[4][5]
  • 204–169 BC – Ennius of a horse worn out by age.[2][5]
  • 220–130 BC – Pacuvius of melancholy.[2][5]
  • 81–43 BC – Cicero of decay.[3][5]

Meanings

Noun

  1. The feebleness of old age, decline, decay.[2][3][6][1]
  2. The period of old age; dotage; poetically, the long course of anything.[2]
  3. Melancholy, gloom, chagrin; a source of grief.[2][1]
  4. (rare) An old man.[1]

Word family

  • seniōsus

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 Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c d e Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  4. ^ 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
  5. ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
Cite this entry

“Senium.” Etymologically, 20 Oct. 2026, etymologically.com/la/senium. Accessed 20 Oct. 2026.

Last edited on . ·