Etymologically

lasciviosus

Etymology and origin of the Latin word lasciviosus

Confidence
Established
Formation
Derivation
First attested
c. 560–636 Isidore of Seville More words from the 6th century
Ultimate origin
Latin lascīvus
Etymology tree
inherited borrowed derived
Latin lascīvus
Latin lascīvia
Latin lascīviōsus
English lascivious
From the same root
Latin lascīviō ← lascīvus

Pronunciation

  • Classical: [ɫas.kiː.wiˈoː.sʊs][1]
  • Ecclesiastical: [laʃ.ʃi.viˈɔː.s̬us][1]

Forms

lascīviōsus (feminine lascīviōsa, neuter lascīviōsum); first/second-declension adjective[1]

Etymology

It is from Latin lascīvia + -ōsus,[1][2] from lascīvus “playful, wanton”.[3][4]

Earliest recorded meaning

Isidore of Seville uses it in the Etymologiae (6.8.7), calling the panegyric an unrestrained and immoderate kind of speech in praise of kings.[2][5][6]

Semantic evolution

It meant playful, unrestrained or wanton,[6][1] and Etymonline notes that Isidore and other early Church writers used it as a word of reproach.[4] The Corpus Glossary copies Isidore's phrase,[6] and Alcuin, writing about 790, tells a correspondent not to be boorish in manners or wanton in words.[6] English borrowed it in the mid-15th century as lascivious, “lustful”.[4]

Timeline

  • c. 560–636 AD – Isidore of Seville uses it of the panegyric.[2][3]
  • c. 790 – Alcuin warns against wanton words in a letter.[6]
  • mid-15th century – Borrowed into English as lascivious.[4]

Meanings

Adjective

  1. Unrestrained, immoderate, wanton.[2][5][6]
  2. Playful, lascivious.[1][6]

References

  1. ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  3. ^ a b Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  4. ^ a b c d Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ a b Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  6. ^ a b c d e f g 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
Cite this entry

“Lasciviosus.” Etymologically, 7 Nov. 2026, etymologically.com/la/lasciviosus. Accessed 8 Nov. 2026.

Last edited on . ·