The Collaborative International Dictionary of English v.0.48:

Raguled \Ra*guled"\ (r[.a]*g[=u]ld"), Ragguled \Rag*guled"\
   (r[a^]g*g[=u]ld"), a. [Cf. F. raguer to chafe, fret, rub, or
   E. rag.] (Her.)
   Notched in regular diagonal breaks; -- said of a line, or a
   bearing having such an edge.
   [1913 Webster]