Etymologically

persuasio

Etymology and origin of the Latin word persuasio

Confidence
Established
Formation
Derivation
First attested
86/82 BC, Rhetorica ad Herennium
Ultimate origin
Proto-Indo-European (*sweh₂d-u-)
Etymology tree
inherited borrowed derived
Latin suadeo
Latin dissuadeo
Latin persuadeo
Latin persuasio

Forms

persuāsiō f (genitive persuāsiōnis); third declension[1]

Etymology

It is from Latin persuādeō (“to convince”) + -tiō.[2][1] De Vaan lists persuādeō with suādeō (“to recommend, advise”) among the derivatives of suāvis (“sweet”): suādeō is a causative, Proto-Italic *swādeje- (“to render agreeable”), and its sense “recommend” grew out of “make sweet, make agreeable”.[3] He traces the adjective to Proto-Indo-European *sweh₂d-u- (“sweet”) and compares Ancient Greek ἡδύς (hēdús, “sweet, pleasant”) and Sanskrit स्वादु (svādú-, “sweet”).[3]

Earliest recorded meaning

The Rhetorica ad Herennium has it first, among the excuses a defending counsel may fall back on: ignorance, folly, force, persuasion.[2][4][5]

Semantic evolution

It is persuasion to a course of action and the act of making someone believe something: Cicero defines the orator's task as speaking suitably for persuasion.[2][6] Quintilian uses it of persuasiveness.[2] From Seneca on it is also the result, a firm belief or conviction: Seneca writes of overturning a wrong conviction of the mind, and Tacitus of a popular belief that the shapes of horses can be seen.[2][6] The TLL finds it in prose in the Rhetorica ad Herennium, in Cicero's De inventione and in Seneca and later writers, and in verse only in Prudentius and Marius Victor.[4] In Church Latin it is conviction, belief or doctrine.[7]

Timeline

  • 86/82 BC – the Rhetorica ad Herennium of persuasion to an act.[2][5]
  • 81–43 BC – Cicero of persuasion as the aim of oratory.[2][5]
  • 4 BC–65 AD – Seneca the Younger of a conviction of the mind.[2][5]
  • late 14th century – English persuasion is borrowed from it, partly through French.[8]

Meanings

Noun

  1. Persuasion, inducement; the act of convincing.[2][6][1]
  2. Persuasiveness.[2]
  3. A firm belief, conviction; a popular belief; a false notion.[2][6][7][1]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  4. ^ a b Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  5. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ a b c d Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  7. ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  8. ^ Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
Cite this entry

“Persuasio.” Etymologically, 19 Oct. 2026, etymologically.com/la/persuasio. Accessed 20 Oct. 2026.

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