Etymologically

impossibilis

Etymology and origin of the Latin word impossibilis

Confidence
Established
Formation
Derivation
First attested
Alfenus
Ultimate origin
Latin (possibilis)
Etymology tree
inherited borrowed derived
Latin possibilis
English possible
Latin impossibilis
English impossible

Pronunciation

  • IPA (Classical): [ɪm.pɔsˈsɪ.bɪ.lɪs][1]
  • IPA (Ecclesiastical): [im.posˈsiː.bi.lis][1]

Forms

impossibilis (neuter impossibile); third-declension two-termination adjective[1]

Etymology

It is from Latin in- + possibilis (“possible”), with the negative prefix.[2][3][4] It is also spelled inpossibilis.[2][5]

Earliest recorded meaning

Köbler's first source is the jurist Alfenus, of the 1st century BC.[6] Lewis & Short call the word post-Augustan and cite Quintilian.[5]

Semantic evolution

It meant impossible, as Quintilian's “impossible, or rather infinite” and Apuleius' “I think nothing impossible”.[2][5] Jerome has impossibile est with an infinitive, and Augustine and Boethius use the comparative impossibilior.[7][3] The Vulgate uses it of a person, “powerless, incapable”.[7][8]

In medieval Latin it kept both senses, impossible and powerless, and the neuter was used as a noun for “the impossible”.[9][10][11] English impossible came from Old French in the late 14th century.[4]

Timeline

  • 1st century BC – The jurist Alfenus uses it.[6]
  • c. 35–95/96 AD – Quintilian uses it.[5][6]
  • c. 125–175 AD – Apuleius uses it.[5][6]
  • late 14th century – English impossible is recorded.[4]

Meanings

Adjective

  1. impossible.[2][1]
  2. (Late Latin) Powerless, incapable.[7][10]

Word family

  • impossibilitās

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. ^ a b Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ a b c Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ a b c d e Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  6. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  7. ^ a b c Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  8. ^ Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  9. ^ Mittellateinisches Wörterbuch bis zum ausgehenden 13. Jahrhundert (1967–), Munich: C. H. Beck; Bayerische Akademie der Wissenschaften
  10. ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
  11. ^ 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

Descendants

Cite this entry

“Impossibilis.” Etymologically, 15 Oct. 2026, etymologically.com/la/impossibilis. Accessed 15 Oct. 2026.

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