Etymologically

Etymology and origin of the Latin word sedatus

Confidence
Established
Formation
Derivation
First attested
c. 250–184 BC Plautus, Amphitruo More words from the 3rd century BC
Ultimate origin
Latin sedeō
Etymology tree
inherited borrowed derived
Latin sedeō
Italian sedere
Romanian ședea
Spanish ser
Latin sēdō
Latin sēdātus
Derivations
From the same root
English reside ← sedeō
Latin assideō ← sedeō
Latin circumsedeō ← sedeō
Latin dēsideō ← sedeō
Latin dissideō ← sedeō
Latin īnsideō ← sedeō
Latin obses ← sedeō
Latin obsideō ← sedeō
Latin persedeō ← sedeō
Latin possideō ← sedeō
Latin praeses ← sedeō
Latin praesideō ← sedeō
Latin resideō ← sedeō
Latin sedīle ← sedeō
Latin sedimentum ← sedeō
Latin sessiō ← sedeō
Latin sessus ← sedeō
Latin subsidium ← sedeō
Latin supersedeō ← sedeō
Italian sedia ← sedere
Romanian ședință ← ședea

Forms

sēdātus (feminine sēdāta, neuter sēdātum, comparative sēdātior, superlative sēdātissimus); first/second-declension adjective[1]

Etymology

Used as an adjective, it is the perfect passive participle from Latin sēdō (“to settle, calm”).[2][3][1] De Vaan explains the verb as a causative of sedeō (“to sit”), first “to make someone sit down”, hence “to appease”.[4]

Earliest recorded meaning

Plautus already has it in the Amphitruo, where a desire that is sedatus is a calm, restrained one: the sense “calm, untroubled”.[2]

Semantic evolution

It describes calm people, their mind and bearing,[2][5] as in Livy's sedato gradu, “at an unhurried pace”,[6][7] and Virgil's sedato corde, “with a calm heart”.[6][7] Cicero uses it of a gently flowing river, as an image of a style,[2][7] and of a settled, quieter time,[2] and of an orator moderate in his use of prose rhythm.[6] The superlative occurs in the Rhetorica ad Herennium (vox sedatissima).[5][6]

English borrowed it as sedate.[8]

Timeline

  • c. 250–184 BC – Plautus uses it of a restrained desire.[2][9]
  • 81–43 BC – Cicero uses it of a gently flowing river and of a calm period.[2][9]
  • 70–19 BC – Virgil writes sedato corde.[6][7]
  • 59 BC–17 AD – Livy writes sedato gradu.[6][7]
  • 1660s – English borrows it as sedate.[8]

Meanings

Adjective

  1. (of a river) tranquil, gently flowing.[2]
  2. (of people, their mind or bearing) calm, composed, untroubled.[2][5]
  3. (of times or conditions) settled, calm.[2]

Usage notes

A separate fourth-declension noun sēdātus (ablative sēdātū), “state of rest”, is found only in the grammarian Virgilius Maro, where it is opposed to war.[6][5]

References

  1. ^ a b Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  4. ^ de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  5. ^ a b c d Georges, Karl Ernst (1913–1918), Ausführliches lateinisch-deutsches Handwörterbuch, 8th ed., ed. Heinrich Georges, Hannover; Leipzig: Hahn
  6. ^ a b c d e f g Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  7. ^ a b c d e 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 Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry

“Sedatus.” Etymologically, 13 Nov. 2026, etymologically.com/la/sedatus. Accessed 13 Nov. 2026.

Last edited on . ·