dis·ac·cord 
(dĭs′ə-kôrd)
(dĭs′ə-kôrd)n.
Lack of harmony; disagreement.
intr.v. dis·ac·cord·ed, dis·ac·cord·ing, dis·ac·cords
To disagree.
[From Middle English disaccorden, to disagree, from Old French desacorder : des-, dis- + acorder, to agree; see ACCORD.]