dis·cla·ma·tion 
(dĭs′klə-māshən)
(dĭs′klə-māshən)n.
The act or an instance of disavowing; renunciation.
[Medieval Latin disclāmātiō, disclāmātiōn-, from disclāmātus, past participle of disclāmāre, to disclaim, probably from Anglo-Norman desclaimer, disclamer; see DISCLAIM.]