What is anything like flakes or scales adhering to a surface. There stood a hill not far, whose grisly top Belched fire and rolling smoke; the rest entire Shone with a glossy scurf. Milton called?

scurf — Anything like flakes or scales adhering to a surface. There stood a hill not far, whose grisly top Belched fire and rolling smoke; the rest entire Shone with a glossy scurf. Milton. (Webster's 1913.)