The Collaborative International Dictionary of English v.0.48:

Class \Class\ (kl[.a]s), v. t. [imp. & p. p. Classed
   (kl[.a]st); p. pr. & vb. n. Classing.] [Cf. F. classer. See
   Class, n.]
   1. To arrange in classes; to classify or refer to some class;
      as, to class words or passages.
      [1913 Webster]

   Note: In scientific arrangement, to classify is used instead
         of to class. --Dana.
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   2. To divide into classes, as students; to form into, or
      place in, a class or classes.
      [1913 Webster]