To bother or trouble.
To harass, to harry, often with the intent to cause injury.
To chafe, to rub or subject to friction; to create a sore on the skin.
To exasperate.
To cause pitting on a surface being cut from the friction between the two surfaces exceeding the bond of the material at a point.
Improper cooling and a dull milling blade on titanium can gall the surface.
To scoff; to jeer.
To impregnate with a decoction of gallnuts in dyeing.
Wear caused by adhesion between sliding surfaces.
Vexing, humiliating