Etymology
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incorrect (adj.)
early 15c., "uncorrected, not chastened into obedience," of sinners, etc. (a sense now obsolete), from Latin incorrectus "uncorrected, not revised," from in- "not" (see in- (1)) + correctus, past participle of corrigere "to put straight; to reform" (see correct (v.)). Sense of "not in good style" is from 1670s; that of "factually wrong, erroneous, inaccurate" is from 1750s (implied in incorrectly).
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misspelling (n.)

"a false or incorrect spelling," 1690s, verbal noun from misspell.

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T-shirt (n.)
1920, in reference to the shape it makes when laid out flat (t-shirt is thus incorrect).
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misaligned (adj.)

"faulty or incorrect arrangement in line," 1903, from mis- (1) "bad, wrong" + past participle of align.

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misinformed (adj.)

"having incorrect or imperfect acquaintance with the facts," mid-15c., past-participle adjective from misinform.

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rarify (v.)
common but incorrect spelling of rarefy (q.v.). Related: Rarified; rarifying.
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misrepresent (v.)

1640s, "give a false or incorrect account of, whether intentionally or not," from mis- (1) "badly, wrongly" + represent. Meaning "to fail to represent correctly as an agent of" is by 1860. Related: Misrepresented; misrepresenting.

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mistaken (adj.)

c. 1600, "under misapprehension, having made a mistake," past-participle adjective from mistake (v.). Meaning "misunderstood" is from 1590s; that of "erroneous, incorrect" is from 1670s. Related: Mistakenly. Mistaken identity in criminal cases is attested by 1838.

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dermat- 

word-forming element meaning "of or pertaining to skin," from Greek dermat-, from derma "(flayed) skin, leather," from PIE root *der- "to split, flay, peel," with derivatives referring to skin and leather. The shortened form derm- was used from mid-19c. but is considered incorrect.

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heterography (n.)
"incorrect spelling," 1783; see hetero- "other, different" + -graphy. Also "inconsistent but current spellings within a language, the use of the same letter with different value in different words or positions" (as English, in all ages), 1847.
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