Transgression (n.) :
late 14th c. from Old French transgression "transgression," particularly that relating to Adam and the Fall, from Latin transgressionem "a transgression of the law," or "a going over, a going across," from transgressus, past part. of transgredi "step across, step over; climb over, pass, go beyond," composed of trans- "across, beyond" + gradi (past part. gressus) "to walk, go".