Dastardize

from The Collaborative International Dictionary of English v.0.48

Dastardize \Das"tard*ize\, v. t. [imp. & p. p. {Dastardized}; p.
   pr. & vb. n. {Dastardizing}.]
   To make cowardly; to intimidate; to dispirit; as, to
   dastardize my courage. --Dryden.
   [1913 Webster]