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claustrarius

Etymology and origin of the Latin word claustrarius

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Confidence
Established
Formation
Derivation
First attested
Historia Augusta
Ultimate origin
Proto-Indo-European (*kleh₂w-)
Etymology tree
inherited borrowed derived
Latin claustrum
Latin claustrarius

Pronunciation

  • IPA (Classical): [kɫau̯sˈtraː.ri.ʊs][1]
  • IPA (Ecclesiastical): [klau̯sˈtraː.ri.us][1]

Forms

claustrārius m (genitive claustrāriī or claustrārī); second declension[1] Also spelled clōstrārius.[2]

Etymology

It is from Latin claustrum (“bar, bolt, lock”) + -ārius.[2][1] De Vaan traces ⟨claudō⟩ to Proto-Italic *klaud-e/o-, from Proto-Indo-European *kleh₂u-d- (“to shut”).[3]

Earliest recorded meaning

Its earliest source is the Historia Augusta, in Lampridius' life of Elagabalus, claustrārius artifex “locksmith”.[4][5][6] Köbler dates the Historia Augusta to the 4th–5th century AD.[6]

Semantic evolution

The OLD takes it as a maker of door bolts, Lewis & Short and Gaffiot as an adjective, of locks, with artifex a locksmith.[2][4][5]

In Medieval Latin it was a cloister warden.[7] In British Medieval Latin, from 1289, it was a hedger, a maker of enclosures.[8]

Timeline

  • 4th–5th century AD – The Historia Augusta has claustrārius artifex.[4][6]
  • 1289 – British records use it of hedgers.[8]

Meanings

Noun

  1. A maker of door bolts, locksmith.[2][4]
  2. (Medieval Latin) A cloister warden.[7]
  3. (Medieval Latin) A hedger.[8]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d 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 c d Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  5. ^ a b Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  6. ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  7. ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  8. ^ a b c 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
Cite this entry

“Claustrarius.” Etymologically, 16 Oct. 2026, etymologically.com/la/claustrarius. Accessed 17 Oct. 2026.

Last edited on . ·