Etymologically

infatuatio

Etymology and origin of the Latin word infatuatio

Confidence
Established
Formation
Derivation
First attested
commentary on Job ascribed to Origen
Ultimate origin
Latin īnfatuō
Etymology tree
inherited borrowed derived
Latin fatuus
Latin īnfatuō
Latin īnfatuātiō
English infatuation

Forms

īnfatuātiō f (genitive īnfatuātiōnis); third declension[1][2]

Etymology

It is formed from Latin īnfatuō + -tiō, from the verb meaning “to make a fool of”.[3][4][1]

Earliest recorded meaning

Its first record is a Latin commentary on Job ascribed to Origen, which speaks of animarum infatuatio atque cordium scandalum (“the befooling of souls and the stumbling of hearts”); the TLL explains it there as deception.[3][5] Lewis & Short attribute the passage to Hilary and Gaffiot to Jerome.[4][2]

Semantic evolution

Gaffiot and Conte render it as extravagance or folly,[2][5] and Du Cange explains it as foolishness, quoting a late medieval sermon.[6] In the Latin of Bohemia it meant madness, a derangement of the mind,[7] and in that of Poland both a loss of savour, said of the salt of the Gospel (Matthew 5:13), and delusion or stupidity.[8]

English infatuation (1640s) comes from infatuate, from French infatuation or from the Late Latin noun.[9]

Timeline

Meanings

Noun

  1. (Late Latin) Deception, befooling.[3][1]
  2. Folly, extravagance.[2][5][6]
  3. (Medieval Latin) Madness, derangement of mind.[7][8]
  4. (Medieval Latin, figurative) Loss of savour.[8]

References

  1. ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  2. ^ a b c d Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  3. ^ a b c Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ a b Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  5. ^ a b c Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
  6. ^ a b du Cange, Charles du Fresne, et al. (1883–1887), Glossarium mediae et infimae latinitatis, augmented ed. by Léopold Favre, Niort: L. Favre
  7. ^ a b Latinitatis medii aevi lexicon Bohemorum / Slovník středověké latiny v českých zemích (1977–), Prague: Academia; electronic version, Institute of Philosophy of the Czech Academy of Sciences
  8. ^ a b c Lexicon mediae et infimae Latinitatis Polonorum (1953–), Kraków: Instytut Języka Polskiego PAN; electronic ed. elexicon.scriptores.pl
  9. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
Cite this entry

“Infatuatio.” Etymologically, 14 Nov. 2026, etymologically.com/la/infatuatio. Accessed 14 Nov. 2026.

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