Camber

Old French cambre ("bent"), from Latin camurum, from camur ("arched").

Full definition of camber

(uncountable)

A slight convexity, arching or curvature of a surface of a road, a beam, roof deck, ship's deck etc., so that liquids will flow off the sides.
The slope of a curved road created to minimize the effect of centrifugal force.
(architecture) An upward concavity in the underside of a beam, girder, or lintel; also, a slight upward concavity in a straight arch.
(automotive) A vertical alignment of the wheels of a road vehicle with positive camber signifying that the wheels are closer together at the bottom than at the top.
The curvature of an airfoil.
(nautical) A small enclosed dock in which timber for masts (etc.) is kept to weather.

To curve upwards in the middle.
To adjust the camber of the wheels of a vehicle.Because he cambered the tires too much, he had less control on the turns.