Source : Webster's Revised Unabridged Dictionary (1913)

Quitclaim \Quit"claim`\, v. t. [imp. & p. p. {Quitclaimed}; p.
   pr. & vb. n. {Quitclaiming}.] (Law)
   To release or relinquish a claim to; to release a claim to by
   deed, without covenants of warranty against adverse and
   paramount titles.