Relating to or causing a concussion; involving or characterized by a violent impact or shock.
From Latin 'concussus' (shaken) with the adjective-forming suffix '-ive.' This creates an adjective describing the nature or quality of shaking or concussive force, becoming the standard modern form in medical and sports contexts.
In modern sports medicine and military contexts, 'concussive' is everywhere—'concussive blast,' 'concussive force,' 'concussive injury'—but the word itself is really just Latin for 'characterized by shaking together'!
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