Etymologically

Etymology and origin of the Latin word -or

Confidence
Established
Formation
Inherited
First attested
c. 250–184 BC Plautus
Inherited from
Proto-Italic *-ōs
Ultimate origin
Proto-Indo-European *-ōs

Pronunciation

  • Classical: [ˈɔr][1]
  • Ecclesiastical: [ˈɔr][1]

Forms

-or m (genitive -ōris); third declension[1]

Etymology

The suffix is inherited from Proto-Italic *-ōs, inherited from Proto-Indo-European *-ōs,[1] the nominative singular of masculine and feminine s-stems, from earlier *-oss with the nominative ending *-s.[1][2] Such nouns are rare in Indo-Iranian and Greek but abundant in Latin.[2] Weiss regards them as originally internal derivatives of the neuter s-stems.[3]

The older nominative was -ōs, genitive -ōris.[4][3] In the post-Plautine period the /r/ of the other cases spread to the nominative and the long vowel shortened before it, which gave the classical -or.[3][1]

Earliest recorded meaning

Plautus already has dolor, timor and rubor.[4] Ennius still has the nominative ⟨clāmōs⟩ for clāmor.[4]

Semantic evolution

The nouns are verbal abstracts, especially beside verbs of the second conjugation,[3] and form sets with adjectives in -idus: timor, timidus and timeō; candor and candidus.[3][2] Untermann, cited by Weiss, finds that most words in -or recorded up to Cicero denote sensations that affect a person for a time.[3] A table in Weiss, based on Quellet, counts about 120 of them.[3]

Timeline

Meanings

Suffix

  1. Forms masculine abstract nouns, mainly beside verbs in -eō and adjectives in -idus: candor, rubor.[4][1]
  2. Forms such nouns from other stems: amor, clāmor, furor2.[4]

Word family

  • Italian -ore
  • French -eur
  • Spanish -or

Usage notes

It is not the agent suffix -tor, though both end in -or, -ōris: that one continues an r-stem and this one an s-stem.[2] The only feminine of the type is arbor, with nominative ⟨arbōs⟩ and a short stem vowel.[3][2]

References

  1. ^ a b c d e f g Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e Sihler, Andrew L. (1995), New Comparative Grammar of Greek and Latin, New York: OUP
  3. ^ a b c d e f g h Weiss, Michael (2020), Outline of the Historical and Comparative Grammar of Latin, 2nd ed., Ann Arbor: Beech Stave
  4. ^ a b c d e f g h Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  5. ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de

Descendants

Related etymologies

  • -icus · also from Proto-Indo-European
  • -ivus · also from Proto-Indo-European
  • -osus · also from Proto-Indo-European
  • -ius · also from Proto-Indo-European
  • -culum · also from Proto-Indo-European
  • -men · also from Proto-Indo-European
  • -io · also from Proto-Indo-European
  • -o · also from Proto-Indo-European
Cite this entry

“-or.” Etymologically, 6 Nov. 2026, etymologically.com/la/-or. Accessed 6 Nov. 2026.

Last edited on . ·