Etymologically

Etymology and origin of the English word perplex

Confidence
Probable
Formation
Back-formation
First attested
1477 Earl Rivers, Dictes or Sayengis of the Philosophhres More words from the 15th century
From
Latin perplexus
Ultimate origin
Proto-Indo-European *plek-
Etymology tree
inherited borrowed derived
Latin perplexus
English perplex

Pronunciation

  • /pɚˈplɛks/, /pəˈplɛks/[1]

Etymology

Most dictionaries take the verb as a back-formation from perplexed,[2][3][4][5][6][7] which extended an older adjective of the same spelling, now obsolete.[4][3][8] The OED, revised in December 2005, instead derives the verb directly from that adjective by conversion, and records it slightly before perplexed.[9] The adjective is from Latin perplexus (“involved, confused, intricate”),[9][3][10] perhaps partly through Middle French perplexe.[2][4][5] The Latin word is formed from per- (“through, thoroughly”) and plexus (“interwoven, entangled”), the past participle of plectō (“to plait, interweave”),[9][3][11][12] from Proto-Indo-European *plek- (“to plait”).[3] There was no corresponding compound verb in Latin.[9][3] Barnhart thinks the adjective was probably also influenced by the older noun perplexity.[2]

Earliest recorded meaning

To puzzle or baffle a person: 1477, in Earl Rivers's translation of the Dictes or Sayengis.[9] Barnhart's first verb is from 1595, in Shakespeare's King John,[2] and Etymonline dates the verb to the 1590s.[3] The adjective is older: the MED and the OED first find it in a text of Wyclif's from before 1425, where the pope's law "makiþ hem perplex".[10][9][2]

Semantic evolution

The word began as a description of a state of mind, and only then produced a verb, the latest of the group according to Etymonline.[3] By the late 15th century the adjective was shifting to the form perplexed, probably to match other past-participle adjectives, and it was obsolete by the 17th century.[3][5] Johnson (1755) still entered the adjective as "intricate; difficult", but noted that perplexed was the word in use.[13] The verb soon moved from the person to the matter, meaning to make a subject complicated or hard to deal with: the OED has this from 1547,[9] Etymonline from the 1610s.[3] A stronger sense, to trouble or torment, appears in Spenser's Faerie Queene (1590) and is now rare,[9][5] and a physical sense, to tangle or intertwine, lasted from 1642 to 1860.[9] A rare noun, meaning perplexity, was formed in the 17th century.[9][5]

Timeline

  • before 1425 – adjective, confused, puzzled.[9][10][2]
  • 1477 – verb, to puzzle, baffle.[9] Barnhart dates it to 1595.[2]
  • 1547 – to make a matter complicated or difficult.[9] Etymonline dates this sense to the 1610s.[3]
  • 1590 – to trouble, torment, in Spenser's Faerie Queene.[9]
  • 1623 – intransitive, to give rise to perplexity (rare).[9]
  • 1642 – to tangle, intertwine (obsolete by 1860).[9]
  • 1652 – noun, perplexity.[9]

Meanings

Verb

  1. To puzzle or bewilder someone; to fill with doubt or uncertainty: The sudden change of plan perplexed the whole committee.[11][14][7][9]
  2. To make a matter intricate or hard to understand; to complicate: Needless jargon only perplexes the argument.[11][14][7][9]
  3. (rare) To trouble or torment.[9][5]

Adjective

  1. (obsolete) Confused, perplexed; of a matter, intricate or difficult.[9][5][10][13]

Noun

  1. (rare) Perplexity.[9][5]

Word family

  • perplexingly
  • perplexer

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
  3. ^ a b c d e f g h i j k Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ a b c Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
  5. ^ a b c d e f g h Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
  6. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
  7. ^ a b c The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
  8. ^ Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
  9. ^ a b c d e f g h i j k l m n o p q r s t u v Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  10. ^ a b c d Kurath, Hans; Kuhn, Sherman M.; Lewis, Robert E., eds. (1952–2001), Middle English Dictionary, Ann Arbor: University of Michigan Press; online edition ed. Frances McSparran et al. (2000–2018)
  11. ^ a b c Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  12. ^ Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
  13. ^ a b Johnson, Samuel (1755), A Dictionary of the English Language, London; 4th ed. 1773; Johnson's Dictionary Online, ed. Beth Rapp Young et al.
  14. ^ a b Collins English Dictionary (2023), Glasgow: HarperCollins

Related etymologies

Cite this entry

“Perplex.” Etymologically, 5 Nov. 2026, etymologically.com/en/perplex. Accessed 5 Nov. 2026.

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