Etymologically

perplexus

Etymology and origin of the Latin word perplexus

Confidence
Established
Formation
Derivation
First attested
c. 250–184 BC, Plautus
Ultimate origin
Proto-Indo-European (*pleḱ-t-e/o-)

Pronunciation

  • Classical: [pɛrˈpɫɛk.sʊs][1]
  • Ecclesiastical: [perˈplɛk.sus][1]

Forms

perplexus (feminine perplexa, neuter perplexum); first/second-declension adjective[1]

Etymology

It is the participle of an unattested compound ⟨*perplectō⟩, from per- (“through”) and plectō (“to plait, twine”).[2][3][1] De Vaan traces plectō to Proto-Italic *plekt- and Proto-Indo-European *pleḱ-t-e/o- (“to plait, twine”), with cognates such as Ancient Greek πλέκω (plékō, “to braid, twine”) and Old High German flehtan (“to plait”).[4]

Earliest recorded meaning

Köbler dates it from Plautus,[5] who in the Miles gloriosus has a character ask what madness makes the other call him by a wrong, muddled name.[2] De Vaan dates the adjective from Lucretius.[4]

Semantic evolution

It means entangled, intertwined: Lucretius has atoms hampered by their own entangled shapes,[2][6] Virgil the tangled path of a wood,[6] and the Vulgate entwined sinews in Job.[6] Figuratively it is complicated and hard to sort out: in Livy envoys say they do not know what is complicated about their embassy, since they have come simply to ask for friendship,[2] and Livy calls a prophetic poem obscure, not only because the future is uncertain but also more puzzling in its kind of writing.[2] Lewis & Short note it is not in Cicero or Caesar.[6] The English perplex comes from it, through the earlier adjective perplex.[7]

Timeline

  • c. 250–184 BC – Plautus of a muddled name.[2][5]
  • 96–55 BC – Lucretius of entangled atoms.[2][6][4]
  • 70–19 BC – Virgil of a tangled path.[6]
  • 59 BC–17 AD – Livy of a cryptic poem.[2]
  • late 14th century – The English adjective perplex appears; the verb perplex follows in the 1590s.[7]

Meanings

Adjective

  1. Entangled, intertwined; muddled, mistaken.[2][6][1]
  2. (figurative) Complicated, intricate, hard to sort out;[2][6][1] (of words) baffling, cryptic.[2][6][1]

Word family

  • perplexim
  • perplexitās
  • perplexor
  • perplexē

References

  1. ^ a b c d e f g 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. ^ Thesaurus linguae Latinae (1900–), Leipzig: Teubner; Berlin: De Gruyter; open-access ed., Munich: Bayerische Akademie der Wissenschaften
  4. ^ a b c 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 Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ a b c d e f g h i Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
  7. ^ a b Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
Cite this entry

“Perplexus.” Etymologically, 20 Oct. 2026, etymologically.com/la/perplexus. Accessed 20 Oct. 2026.

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