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Added 9 October 2026

concussion

/kənˈkʌʃən/ noun

Latin root: concussiō Wiktionary

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

Injury to the brain caused by a blow; usually resulting in loss of consciousness.
Any violent blow.

Origin

From Latin concussiō. Equivalent to concuss + -ion.

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

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