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Added 7 October 2026

deviation

/ˌdiː.viˈeɪʃən/ noun

Latin root: deviatio Wiktionary

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about deviation at Wordnik → Where our words come from →

A variation that deviates from the standard or norm.
the deviation from the mean
The difference between an observed value and the expected value of a variable or function.
The error of a compass due to local magnetic disturbances.

Origin

From Middle French deviation, from Medieval Latin deviatio. Morphologically deviate + -ion.

From Wiktionary, via Kaikki.org (CC BY-SA)

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