Source : Webster's Revised Unabridged Dictionary (1913)

Overfreight \O`ver*freight"\, v. t. [imp. & p. p.
   {Overfreighted} ({Overfraught}, obs.); p. pr. & vb. n.
   {Overfreighting}.]
   To put too much freight in or upon; to load too full, or too
   heavily; to overload.