overr

a. Too rank or luxuriant. [ 1913 Webster ]

n. An excessive rate. [ R. ] Massinger. [ 1913 Webster ]

v. t. [ imp. & p. p. Overrated; p. pr. & vb. n. Overrating. ] To rate or value too highly; to overestimate. [ 1913 Webster ]

n. a calculation that results in an estimate that is too high.
Syn. -- overestimate, overestimation, overreckoning. [ WordNet 1.5 ]

v. i. 1. To reach too far; as: (a) To strike the toe of the hind foot against the heel or shoe of the forefoot; -- said of horses. (b) (Naut.) To sail on one tack farther than is necessary. Shak. [ 1913 Webster ]

2. To cheat by cunning or deception. [ 1913 Webster ]

v. t. [ imp. & p. p. Overreached (Overraught obs.); p. pr. & vb. n. Overreaching. ] [ 1913 Webster ]

1. To reach above or beyond in any direction. [ 1913 Webster ]

2. To deceive, or get the better of, by artifice or cunning; to outwit; to cheat. Shak. [ 1913 Webster ]

3. To defeat one's own purpose by trying to do too much or by trying too hard or with excessive eagerness; -- used reflexively; as, the candidate overreached himself by trying to plant false rumors, which backfired/ [ PJC ]

n. The act of striking the heel of the fore foot with the toe of the hind foot; -- said of horses. [ 1913 Webster ]

n. One who overreaches; one who cheats; a cheat. [ 1913 Webster ]