Present participle of careen: the act of tilting a ship for cleaning, or moving rapidly and recklessly without proper control.
From Middle French carener + -ing (present participle suffix). The dual meanings (maritime repair vs. reckless motion) developed from the physical sensation and appearance of a careening ship.
When ships careen at sea during storms, they tilt so dramatically that sailors described it as the most terrifying moment—the feeling of being on a rapidly tilting platform while gravity shifts is pure panic inducing!
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