The Collaborative International Dictionary of English v.0.48:

Manifold \Man"i*fold\, v. t. [imp. & p. p. Manifolded; p. pr.
   & vb. n. Manifolding.]
   To take copies of by the process of manifold writing; as, to
   manifold a letter.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Manifolded \Man"i*fold`ed\, a.
   Having many folds, layers, or plates; as, a manifolded
   shield. [Obs.]
   [1913 Webster]