Etymologically

suspiciosus

Etymology and origin of the Latin word suspiciosus

Confidence
Established
Formation
Derivation
First attested
Plautus
Ultimate origin
Latin (suspīciō)

Pronunciation

  • IPA (Classical): [sʊs.pɪ.kiˈoː.sʊs][1]
  • IPA (Ecclesiastical): [sus.pi.t͡ʃiˈɔː.s̬us][1]

Forms

suspiciōsus (feminine suspiciōsa, neuter suspiciōsum, superlative suspiciōsissimus); first/second-declension adjective[1] Also spelled suspītiōsus; superlative suspīciōsissimus.[2][3]

Etymology

It is from Latin suspīciō (“suspicion”) + -ōsus, from suspiciō “to look up at; to suspect”.[3][1][4]

Earliest recorded meaning

Köbler's earliest source is Plautus, and the OLD's earliest citation is Terence.[4][3] Köbler dates Plautus c. 250–184 BC.[4]

Semantic evolution

It meant of persons full of mistrust, ready to suspect, suspicious, as in Terence and Cicero, and of circumstances arousing mistrust, suspicious, as in the Rhetorica ad Herennium.[3][5]

English suspicious (mid-14th century) is from it through Anglo-French.[6]

Timeline

  • c. 250–184 BC – Plautus uses it.[4]
  • 190–159 BC – Terence uses it of mistrustful persons.[3][4]
  • 86/82 BC – The Rhetorica ad Herennium uses it of circumstances.[3][4]
  • mid-14th century – English suspicious is recorded.[6]

Meanings

Adjective

  1. Mistrustful, suspicious.[3][2]
  2. Arousing suspicion.[3]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  3. ^ a b c d e f g h Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  4. ^ a b c d e f Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  5. ^ Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.
  6. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
Cite this entry

“Suspiciosus.” Etymologically, 17 Oct. 2026, etymologically.com/la/suspiciosus. Accessed 17 Oct. 2026.

Last edited on . ·