o·ver·cor·rect 
(ō′vər-kə-rĕkt)
(ō′vər-kə-rĕkt)v. o·ver·cor·rect·ed, o·ver·cor·rect·ing, o·ver·cor·rects
v.tr.
To correct beyond what is needed, appropriate, or usual, especially when resulting in a mistake.
v.intr.
To correct something to an excessive or unusual degree.
o′ver·cor·rection n.