The Collaborative International Dictionary of English v.0.48:

Battology \Bat*tol"o*gy\ (b[a^]t*t[o^]l"l[-o]*j[y^]), n. [F.
   battologie, fr. Gr. battologi`a; ba`ttos; a stammerer +
   lo`gos speech.]
   A needless repetition of words in speaking or writing.
   --Milton.
   [1913 Webster]