Definition of "ambodexter"

men are evil, wicked, malicious, treacherous, and naught, not loving one another, or loving themselves, not hospitable, charitable, nor sociable as they ought to be, but counterfeit, dissemblers, ambodexters, all for their own ends, hard-hearted, merciless, pittiless ; and, to benefit themselves, they car? not what mischiefe they procure to others.

1621, Robert Burton, The anatomy of melancholy

He is charged to have bene longe a most gredye & insatiable taker of excessive fees, and (which is moost odious) a notorious & common ambodexter, takinge fee on both sydes, to the great scandals of his place & profession.

1868, Lives of the Lord Chancellors and Keepers of the Great Seal of England‎, volume 2