The Collaborative International Dictionary of English v.0.48:

Forslow \For*slow"\, v. t. [Pref. for- + slow.]
   To delay; to hinder; to neglect; to put off. [Obs.] --Bacon.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Forslow \For*slow"\, v. i.
   To loiter. [Obs.] [Also spelled foreslow.]--Shak.
   [1913 Webster]