mystify

Etymology

It is borrowed from French mystifier (“to hoax, dupe”),^{[2][3][4][5][6]} recorded in French from 1764, and in the past participle mystifié as early as 1760;^[2] Etymonline dates the French verb to 1772.^[3] The OED forms it from Ancient Greek μύστης (mústēs, “an initiate”) and the suffix -ifier,^[2] and notes that the French word was apparently first used of a popular practical joke in which the victim went through a mock initiation ceremony.^[2] Most other dictionaries take it as formed irregularly from mystique (“mystic, mysterious”)^[3][4][7][8] or from mystère (“mystery”)^{[5][6][9][8][10]} and the suffix -fier.^[3][5] Mystique is from Latin mysticus,^[4][3] from Greek words based on mústēs, one who has been initiated.^[3] It is related to mystic and mystery.^[3][9]

Earliest recorded meaning

To make obscure, to obscure the meaning of: 1798, according to Etymonline.^[3] The OED, which revised the entry in 2003, has no record before 1806.^[2]

Semantic evolution

In English, as in French, the verb first meant to puzzle or hoax someone on purpose: the OED's first record is from 1806, in a translation of Louis Dutens's memoirs,^[2] and Barnhart and Etymonline date this sense to 1814, Barnhart citing Hazlitt's Political Essays.^[4][3] From 1819, in Byron's Don Juan, a thing or event could mystify a person, without intent.^[2] The OED notes an early spelling mistify, which shows that the word was associated with mist, and puns on the two.^[2] From 1829 the verb also meant to make something mystical or to interpret it mystically.^[2][8] The noun mystification followed in 1814–16.^[3][2][4]

Timeline

• 1798 – to make obscure, to obscure the meaning of something.^[3] The OED's first record of this sense is from 1827, in a letter of Southey.^[2]
• 1806 – to perplex or bewilder a person, especially on purpose; to hoax.^[2] Etymonline and Barnhart date it to 1814.^[3][4]
• 1819 – of a thing, to cause bewilderment.^[2]
• 1829 – to make mystical; to interpret mystically.^[2]

Meanings

Verb

1. To puzzle or bewilder someone, sometimes on purpose: The magician's last trick mystified even the stagehands.^[10][6][2]
2. To make something obscure or hard to understand.^[10][6][2]
3. To give something a mystical character, or interpret it mystically.^[2][8]

Word family

• mystifier
• mystifyingly
• mystification
• mystifiedly
• demystify

Related words

• mysterious
• mystery
• mystic
• mystical
• mysticism
• mystique
• mist

References

1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
2. ^ a b c d e f g h i j k l m n o p q Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
3. ^ a b c d e f g h i j k l Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
4. ^ a b c d e f Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
5. ^ a b c The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
6. ^ a b c d Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
7. ^ Stevenson, Angus, ed. (2010), Oxford Dictionary of English, 3rd ed., Oxford: Oxford University Press
8. ^ a b c d Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
9. ^ a b Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
10. ^ a b c Collins English Dictionary (2023), Glasgow: HarperCollins