Frost (?), v. t. [imp. & p. p.Frosted; p. pr. & vb. n.Frosting.] 1. To injure by frost; to freeze, as plants.
2. To cover with hoarfrost; to produce a surface resembling frost upon, as upon cake, metals, or glass.
While with a hoary light she frosts the ground. Wordsworth.
3. To roughen or sharpen, as the nail heads or calks of horseshoes, so as to fit them for frosty weather.