Etymologically

obsequiosus

Etymology and origin of the Latin word obsequiosus

Confidence
Established
Formation
Derivation
First attested
c. 250–184 BC Plautus, Captivi More words from the 3rd century BC
Ultimate origin
Latin obsequium
Etymology tree
inherited borrowed derived
Latin sequor
Latin obsequor
Latin obsequium
Latin obsequiōsus
English obsequious
From the same root
Latin assequor ← sequor
Latin cōnsequor ← sequor
Latin exsequor ← sequor
Latin īnsequor ← sequor
Latin persequor ← sequor
Latin prōsequor ← sequor
Latin resequor ← sequor
Latin secta ← sequor
Latin sector ← sequor
Latin secundus ← sequor
Latin sequāx ← sequor
Latin sequēla ← sequor
Latin sequēns ← sequor
Latin solsequia ← sequor
Latin subsequor ← sequor
Latin obsequēns ← obsequor

Pronunciation

  • Classical: [ɔp.sɛ.kʷiˈoː.sʊs][1]
  • Ecclesiastical: [ob.se.kʷiˈɔː.s̬us][1]

Forms

obsequiōsus (feminine obsequiōsa, neuter obsequiōsum); first/second-declension adjective[1] It is also spelled opsequiōsus.[2]

Etymology

It is formed from Latin obsequium + -ōsus, an adjective “full of compliance”.[2][1] The TLL compares imperiōsus from imperium.[3] Obsequium “compliance” is from obsequor (“to yield, comply”),[1][4] a compound of sequor (“to follow”), which goes back to Proto-Italic *sekʷ-e/o- and Proto-Indo-European *sekʷ-e/o- (“to follow, accompany”).[5]

Earliest recorded meaning

Its only Classical instance is in Plautus' Captivi, where a speaker says that the other was always as obliging to him as a slave would be (obsequiosus mihi semper fuisti).[3][6][7][8]

Semantic evolution

L&S counts it among the ante-classical words, citing only Plautus.[7] Later Latin has the comparative adverb obsequiōsius in Verecundus, of servants obeying the will of their master.[3]

In British Medieval Latin it meant obedient and compliant, said of a servant or messenger, of the will and of deeds: Osbern of Gloucester glosses it as “full of compliance”, and Thomas Bekynton writes in 1439 of a faithful and very obliging messenger.[9]

Timeline

  • c. 250–184 BC – Plautus uses it in the Captivi.[3][8]
  • before 552 AD – Verecundus uses the comparative adverb obsequiōsius.[3][8]
  • 1439 – Thomas Bekynton calls a messenger obsequiosus.[9]

Meanings

Adjective

  1. Compliant, deferential, obliging.[2][7][3]
  2. (Medieval Latin) Obedient, ready to serve, of a person or of the will or deeds.[9]

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 c d e f Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ Bianchi, Rossella; Lelli, Olga (2014), VOLI: Vocabolario di latino, Florence: Le Monnier
  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. ^ Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  7. ^ a b c Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  8. ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  9. ^ a b c 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

“Obsequiosus.” Etymologically, 7 Nov. 2026, etymologically.com/la/obsequiosus. Accessed 8 Nov. 2026.

Last edited on . ·