Etymologically
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sociofraudus

Etymology and origin of the Latin word sociofraudus

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Confidence
Established
Formation
Compound
First attested
Plautus
Ultimate origin
Latin (socius,fraus)

Forms

sociofraudus m (genitive sociofraudī); second declension[1]

Etymology

It was coined by Plautus from socius “partner, comrade” and fraudō “to cheat”.[1][2][3] De Vaan traces ⟨socius⟩ to Proto-Italic *sokjo-, from Proto-Indo-European *sokʷ-(h₂)-i-o- (“companion”).[4]

Earliest recorded meaning

It occurs only in Plautus' Pseudolus.[3][5][6] Köbler dates Plautus c. 250–184 BC.[6]

Semantic evolution

It meant one who cheats his partner, deceives his comrades.[2][3]

Timeline

  • c. 250–184 BC – Plautus coins it.[3][6]

Meanings

Noun

  1. One who cheats his partner.[2]

References

  1. ^ a b 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 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. ^ Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  6. ^ a b c Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
Cite this entry

“Sociofraudus.” Etymologically, 17 Oct. 2026, etymologically.com/la/sociofraudus. Accessed 17 Oct. 2026.

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