Etymologically

Etymology and origin of the Latin word pomerium

Confidence
Disputed
Formation
Compound
First attested
116–27 BC, Varro
Ultimate origin
Latin (post,mūrus)
Etymology tree
inherited borrowed derived
Latin post
Latin pone
Latin postmodo
Latin pomerium

Pronunciation

  • Classical: [poːˈmeː.ri.ũː][1]
  • Ecclesiastical: [poˈmɛː.ri.um][1]

Forms

pōmērium n (genitive pōmēriī or pōmērī); second declension[1] It is also spelled pōmoerium; the first spelling is most frequent in inscriptions, the second in manuscripts.[2][3] Varro's postmoerium seems to have been inferred from the etymology.[3]

Etymology

De Vaan takes it as a compound, from Latin post (“behind”) + mūrus (“wall”), from an older form meaning “what is behind the wall”;[4][1] the old diphthong of ⟨moerus⟩ was not changed to /ī/ as expected in a non-initial syllable, so the word may be an archaism.[4] The OLD suggests instead that it is perhaps Etruscan.[2]

Ancient writers made the same connection with the wall: Varro wrote ⟨postmoerium⟩, and Paulus' epitome of Festus explains another archaic form as “next to the wall”.[3]

Earliest recorded meaning

De Vaan records it from Varro,[4] who also uses it figuratively of the bounds that writers set to their subject.[2][3]

Semantic evolution

It was the open strip of land left free of buildings inside and outside the walls of a town, marked by boundary stones and forming the limit within which the city's auspices were taken; it is used especially of Rome.[2][3] Cicero writes of entering and crossing the pomerium and of the law that governs it, and Livy, Tacitus and Gellius use it.[3] An inscription of 8 BC records it.[3] Juvenal's wit born intra pomeria is the wit of the city.[3]

Apuleius uses it of the boundary of any town.[2] Medieval glossaries define it as the space around the walls.[5] In medieval Latin it could also stand for pomarium, an orchard.[6]

Timeline

  • 116–27 BC – Varro uses it of town bounds and, figuratively, of the limits of a subject.[2][3][7]
  • 81–43 BC – Cicero writes of crossing the pomerium.[3][7]
  • 59 BC–17 AD – Livy uses it.[3][7]
  • 98–115 AD – Tacitus uses it of the pomerium of Rome.[3][7]
  • c. 125–175 AD – Apuleius uses it of the bounds of any town.[2][7]

Meanings

Noun

  1. The open strip of land round the walls of a town that formed its sacred boundary, especially that of Rome.[2][3]
  2. The boundary of any town.[2]
  3. (figurative) The bounds or limits of a subject.[2][3]
  4. (Medieval Latin) An orchard.[6]

References

  1. ^ a b c d 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 f g h i j k l m n Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  4. ^ a b c de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  5. ^ 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
  6. ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  7. ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry

“Pomerium.” Etymologically, 20 Oct. 2026, etymologically.com/la/pomerium. Accessed 20 Oct. 2026.

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