Etymologically

felix

Etymology and origin of the Latin word felix

Confidence
Established
Formation
Inherited
First attested
Plautus
Inherited from
Proto-Italic *fēl(w)ī-
Ultimate origin
Proto-Indo-European (*dʰeh₁(y)-)

Pronunciation

  • IPA (Classical): [ˈfeː.liːks][1]
  • IPA (Ecclesiastical): [ˈfɛː.liks][1]

Forms

fēlīx (genitive fēlīcis, comparative fēlīcior, superlative fēlīcissimus, adverb fēlīciter); third-declension one-termination adjective[1]

Etymology

It is inherited from Proto-Italic *fēl(w)ī- (“suckling, with young”), with ⟨-c-⟩ added in Latin, from Proto-Indo-European *dʰeh₁-l(u)-i-, from the root *dʰeh₁(y)- “to suck”.[2][1] De Vaan explains the development as “suckling” or “with young” > “fruitful” > “fortunate”.[2] Cognate with Ancient Greek θηλή (thēlḗ, “teat”) and Old Irish deil (“sow”), and related to fīlius, fēmina, fēcundus and fētus.[2][3]

Earliest recorded meaning

De Vaan and Köbler date it from Plautus.[2][4] Cato, quoted by Festus, uses arbor fēlīx for a fruit-bearing tree.[5] Köbler dates Plautus c. 250–184 BC.[4]

Semantic evolution

Its first sense was fruitful or productive, of trees and plants.[3][5] It then meant bringing good luck or auspicious, of omens, and enjoying good fortune, happy or blessed, as in Terence's hominem fēlīcem! “lucky man!”.[3] Sulla took it as a cognomen, Fēlīx, and it became a common Roman name.[6]

Döderlein notes that fēlīx is the most general word for happiness, both making and being happy.[7] In Christian Latin it meant blessed.[8] fēlīcitās gave English felicity.[9] It was borrowed into Italian felice and Spanish feliz.[1]

Timeline

  • c. 250–184 BC – Plautus uses it.[2][4]
  • 190–159 BC – Terence exclaims “lucky man!”.[3][4]
  • 96–55 BC – Lucretius speaks of fruitful trees.[3][4]
  • late 14th century – English felicity is recorded.[9]

Meanings

Adjective

  1. fruitful, productive.[3]
  2. Lucky, auspicious.[3]
  3. Fortunate, happy, blessed.[3]
  4. (Ecclesiastical Latin) Blessed.[8]

Word family

  • fēlīcitās
  • īnfēlīx
  • fēlīciter
  • fēlīcitō

Usage notes

A different noun fēlix, a variant of filix “fern”, has a short e.[5][6]

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e 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 Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  4. ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ a b c Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  6. ^ a b Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  7. ^ Döderlein, Ludwig (1874), Döderlein’s Hand-book of Latin Synonymes, tr. H. H. Arnold, Andover: W. F. Draper
  8. ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  9. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com

Related etymologies

  • volvo · also from Proto-Italic
  • veho · also from Proto-Italic
  • status · also from Proto-Italic
  • corrigia · also from Proto-Italic
  • celo · also from Proto-Italic
  • salio · also from Proto-Italic
  • lira · also from Proto-Italic
  • ferio · also from Proto-Italic
Cite this entry

“Felix.” Etymologically, 16 Oct. 2026, etymologically.com/la/felix. Accessed 16 Oct. 2026.

Last edited on . ·