Etymologically

insons

Etymology and origin of the Latin word insons

Confidence
Established
Formation
Compound
First attested
Plautus
Ultimate origin
Proto-Indo-European (*h₁sónts)

Pronunciation

  • IPA (Classical): [ˈĩː.sõːs][1]
  • IPA (Ecclesiastical): [ˈin.sons][1]

Forms

īnsōns (genitive īnsontis); third-declension one-termination adjective[1]

Etymology

It is from in- (“not”) and sōns “guilty”.[2][1][3] De Vaan traces ⟨sōns⟩ to Proto-Italic ⟨*sont-⟩ “being”, the old participle of “to be”, Proto-Indo-European *h₁s-ónt-s (“existing, real”), cognate with Sanskrit सत् (sánt-, “being, real”) and Ancient Greek ὤν (ṓn, “being”).[4]

Earliest recorded meaning

The OLD's earliest citation is Plautus, “innocent”.[2] Köbler dates Plautus c. 250–184 BC.[3]

Semantic evolution

It meant guiltless, innocent, as in Plautus and in īnsontem probrī accūsāre “to accuse someone innocent of a disgrace”, and in poetry harmless, doing no injury, as in Horace, and Lewis & Short note that it is classical but not used by Cicero or Caesar.[2][5]

In Ecclesiastical Latin it means innocent.[6] British Medieval Latin used it also as a noun for an innocent person.[7]

Timeline

  • c. 250–184 BC – Plautus uses it.[2][3]
  • 65–8 BC – Horace uses it of the harmless.[2][3]

Meanings

Adjective

  1. Guiltless, innocent.[2][5]
  2. (poetic) Harmless.[2]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  3. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  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 Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  6. ^ Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
  7. ^ 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

“Insons.” Etymologically, 17 Oct. 2026, etymologically.com/la/insons. Accessed 17 Oct. 2026.

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