Double-cross
Origin
First recorded in 1834 from thieves' slang cross (or on the cross) to refer to something dishonest, a play on straight/square, and therefore a crook going back on his partners would be crossing the crossers, or double-crossing.
First recorded in 1834 from thieves' slang cross (or on the cross) to refer to something dishonest, a play on straight/square, and therefore a crook going back on his partners would be crossing the crossers, or double-crossing.