The Collaborative International Dictionary of English v.0.48:

Scug \Scug\ (sk[u^]g), v. i. [Cf. Dan. skygge to darken, a
   shade, SW. skugga to shade, a shade, Icel. skyggja to shade,
   skuggi a shade.]
   To hide. [Prov. Eng.] --Halliwell.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Scug \Scug\, n.
   A place of shelter; the declivity of a hill. [Prov. Eng.]
   --Halliwell.
   [1913 Webster] Sculk