Etymologically

Etymology and origin of the Latin word clunis

Confidence
Established
Formation
Inherited
First attested
c. 250–184 BC, Plautus
Inherited from
Proto-Italic *klouni-
Ultimate origin
Proto-Indo-European (*ḱlou-ni-)

Pronunciation

  • Classical: [ˈkɫuː.nɪs][1]
  • Ecclesiastical: [ˈkluː.nis][1]

Forms

clūnis m or f (genitive clūnis); third declension[1]

Etymology

It is inherited from Proto-Italic *klouni-, inherited from Proto-Indo-European *ḱlou-ni- (“hip, buttock”).[2][1] Cognate with Middle Welsh clun (“haunch”), Sanskrit श्रोणि (śróṇi-, “buttock, hip, loin”), Lithuanian šlaunìs (“haunch, hip”) and Old Norse hlaun (“buttocks”).[2] The OLD also compares Ancient Greek κλόνις (klónis, “os sacrum”), but de Vaan thinks it cannot continue the same form and calls the usual explanation gratuitous.[3][2] He finds no good root etymology for it.[2]

Earliest recorded meaning

De Vaan and Köbler find it first in Plautus.[2][4] Lucilius uses it of someone who will wriggle as if winnowing grain with his buttocks.[3]

Semantic evolution

It means the hind quarters, buttocks or haunches, mostly in the plural, of animals and people:[3][5] Horace has wood pigeons served without the rump.[3] Pliny the Elder uses it of the hind part of spiders and of a kind of cockroach with a pointed rear.[3] Lewis & Short note that it is both masculine and feminine, so that the grammarians differ on its gender; the singular occurs in Horace, Juvenal, Martial, Petronius and Pliny the Elder.[5]

Timeline

  • c. 250–184 BC – Plautus.[2][4]
  • c. 180–102 BC – Lucilius of winnowing with the buttocks.[3]
  • 65–8 BC – Horace of pigeons without the rump.[3]
  • 23/24–79 AD – Pliny the Elder of spiders and cockroaches.[3]

Meanings

Noun

  1. The hind quarters, buttocks, haunches, rump.[3][5][1]
  2. The corresponding part of spiders and insects.[3]

Word family

  • clūnāculum
  • clūnālis
  • clūnicula
  • clūniculus
  • nātis

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  3. ^ 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
  4. ^ a b Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ a b c Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press

Related etymologies

  • opus · also from Proto-Indo-European
  • albus · also from Proto-Indo-European
  • potis · also from Proto-Indo-European
  • salvus · also from Proto-Indo-European
  • socius · also from Proto-Indo-European
  • signum · also from Proto-Indo-European
  • frater · also from Proto-Indo-European
  • foedus · also from Proto-Indo-European
Cite this entry

“Clunis.” Etymologically, 20 Oct. 2026, etymologically.com/la/clunis. Accessed 20 Oct. 2026.

Last edited on . ·