Late 16th century, from French carene (“keel”), from Genoese Ligurian carena, from Latin carina (“keel of a ship”), from Proto-Indo-European *kert-, *kret- (“strong, powerful”), see also Ancient Greek κράτυς (kratus, “strong”), κράτος (kratos, “strength, power, dominion”).
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- (nautical) To heave a ship down on one side so as to expose the other, in order to clean it of barnacles and weed, or to repair it below the water line.
- (nautical) To tilt on one side.
- To lurch or sway violently from side to side.
- To tilt or lean while in motion. [from late 19th c.]
- To career. [from at least early 20th c.]
Derived terms 
careen (infinitive carear)