scoff (v.) Look up scoff at Dictionary.com
c.1380, earlier as a noun, "contemptuous ridicule" (c.1300), from a Scand. source, cf. O.N. skaup, skop "mockery," M.Dan. skof "jest, mockery;" perhaps from P.Gmc. *skub-, *skuf- (cf. O.E. scop "poet," O.H.G. scoph "fiction, sport, jest, derision;" see scold), from PIE *skeub- "to shove."