A typographical error, typically a small mistake in typed or printed text such as a misspelled word or incorrect character.
Modern English abbreviation of 'typographical error', first appearing in the 1890s with the rise of typewriters. From Greek 'typos' (impression, figure) + graphical (writing), reflecting the mechanical nature of early printing and typing.
The QWERTY keyboard layout was actually designed to slow down typing to prevent mechanical typewriter keys from jamming, yet typos persist even on modern devices. Studies show that our brains often autocorrect typos when reading, which is why proofreading your own work is notoriously difficult.
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