Stultiloquence

from The Collaborative International Dictionary of English v.0.48

Stultiloquence \Stul*til"o*quence\, n. [L. stultiloquentia;
   stultus foolish + loquentia a talking, fr. loquens, p. pr. of
   loqui to talk.]
   Silly talk; babbling.
   [1913 Webster]