Etymologically

infructuosus

Etymology and origin of the Latin word infructuosus

Confidence
Established
Formation
Derivation
First attested
1st century AD, Columella
Ultimate origin
Latin fruor
Etymology tree
inherited borrowed derived
Latin fructuosus
Latin infructuosus

Pronunciation

  • Classical: [ĩː.fruːk.tuˈoː.sʊs][1]
  • Ecclesiastical: [iɱ.fruk.tuˈɔː.s̬us][1]

Forms

īnfrūctuōsus (feminine īnfrūctuōsa, neuter īnfrūctuōsum); first/second-declension adjective[1]

Etymology

It is from Latin in- (“not”) + frūctuōsus (“fruitful”).[2][1] The adjective is built on frūctus (“fruit, produce”), from fruor (“to enjoy”), which de Vaan traces to Proto-Italic *frūg-je/o- and Proto-Indo-European *bhruHg-ie/o- (“to use”).[3]

Earliest recorded meaning

It is first found in Columella,[4] who speaks of a vineyard of a bad kind that bears no fruit.[2] L&S call it post-Augustan.[5]

Semantic evolution

Used first of plants and land that yield nothing (Pliny the Elder of trees made barren by a bad site, the jurist Scaevola of an inherited estate a wife sold as unprofitable),[2] it was soon applied to anything that brings no return: Tacitus writes of empty and fruitless praise and of long, unrewarding military service, and Pliny the Younger of fruitless prayers.[2][5] The OLD notes a passage of the elder Seneca where it seems to mean “having evil results”.[2]

Christian writers used it of barren trees and wood in the Vulgate, of works that bear no fruit, and of people who do no good;[6] Jerome and Augustine formed the adverb īnfrūctuōsē.[5] Medieval writers used it for unfruitful, unprofitable and vain.[7]

Timeline

  • 1st century AD – Columella uses it of a vineyard that bears no fruit.[2][4]
  • 23/24–79 AD – Pliny the Elder uses it of barren trees.[2][4]
  • 98–115 AD – Tacitus uses it of fruitless praise and unrewarding service.[2][4]
  • 390–406 AD – The Vulgate uses it of barren trees and of unfruitful people.[6][4]

Meanings

Adjective

  1. (of plants, land) unfruitful, barren.[2][5]
  2. Fruitless, unprofitable, useless.[2][5][6]
  3. Having evil results.[2]
  4. (Ecclesiastical Latin) (of people) Bearing no fruit, doing no good.[6]

Word family

  • infructuositas

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 k 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 e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ a b c d e Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  6. ^ a b c d Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  7. ^ Mittellateinisches Wörterbuch bis zum ausgehenden 13. Jahrhundert (1967–), Munich: C. H. Beck; Bayerische Akademie der Wissenschaften
Cite this entry

“Infructuosus.” Etymologically, 20 Oct. 2026, etymologically.com/la/infructuosus. Accessed 23 Oct. 2026.

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