Scratched; -- said of decorative painting of a certain style, in which a white overland surface is cut or scratched through, so as to form the design from a dark ground underneath. [1913 Webster]
sgraffito, n. (pl. sgraffiti) a form of decoration made by scratching through wet plaster on a wall or through slip on ceramic ware, showing a different-coloured under-surface.
Etymology
It., past part. of sgraffire scratch f. s- = EX-(1) + graffio scratch