Etymologically

Etymology and origin of the Latin word lubrico

Confidence
Established
Formation
Derivation
First attested
c. 67–127 Juvenal More words from the 1st century
Ultimate origin
Latin lūbricus
Etymology tree
inherited borrowed derived
Latin lūbricus
Latin lūbricō
Romanian aluneca

Pronunciation

  • Classical: [ˈɫuː.brɪ.koː][1]
  • Ecclesiastical: [ˈluː.bri.ko][1]

Forms

lūbricō (present infinitive lūbricāre, perfect active lūbricāvī, supine lūbricātum); first conjugation[1]

Etymology

It is formed from Latin lūbricus (“slippery”) + -ō.[2][3][4] The adjective goes back to Proto-Italic *(s)loufre/o-ko- and Proto-Indo-European *sle/oubʰ-ro- (“gliding”), and is related to Gothic 𐍃𐌻𐌹𐌿𐍀𐌰𐌽 (sliupan, “to creep, slide”) and Old English slūpan.[5]

Earliest recorded meaning

Juvenal is the earliest author recorded with the verb, in his eleventh satire, in the sense “to make slippery”.[6][4][7]

Semantic evolution

The transitive sense “to make slippery or smooth” was postclassical.[6] Arnobius and Prudentius use the participle lūbricātus, made slippery,[6] and Prudentius also uses it figuratively, “to make uncertain”.[7][4] Intransitively it meant “to be slippery”, and so “to be unsteady or uncertain”, in the Vulgate's Lamentations and in Apuleius;[6][7] the TLL also records deponent forms.[3]

It lives on in Romanian luneca and aluneca, “to slip”,[1] and was borrowed again by the Romance languages and by English, where lubricate (1620s) comes from its past participle.[1][8]

Timeline

  • c. 67–c. 127 AD – Juvenal uses it in the sense “to make slippery”.[6][9]
  • 297–310 AD – Arnobius has the participle lūbricātus.[6][9]
  • 348/49–c. 413 AD – Prudentius uses it literally and figuratively.[6][7][9]
  • 390–406 AD – The Vulgate uses it intransitively, “to be slippery”.[6][9]
  • 1620s – English forms lubricate from its past participle.[8]

Meanings

Verb

  1. To make slippery or smooth; to lubricate.[2][6]
  2. (figurative) To make uncertain.[7][4]
  3. (intransitive) To be slippery; to be unsteady or uncertain.[6][7]

Word family

  • illūbricō

Usage notes

A separate word with the same spelling, the adverb lūbricō “smoothly, without friction”, also formed from lūbricus, is found in Celsus.[2][7]

References

  1. ^ a b c d e Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c 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 d Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  5. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  6. ^ a b c d e f g h i j Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  7. ^ a b c d e f g Conte, Gian Biagio; Pianezzola, Emilio; Ranucci, Giuliano (2010), il Latino: Vocabolario della lingua latina, 3rd ed., Florence: Le Monnier
  8. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  9. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry

“Lubrico.” Etymologically, 13 Nov. 2026, etymologically.com/la/lubrico. Accessed 14 Nov. 2026.

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