disclaim; disavow; retract a previous statement
Every thinking man has believed foolish things in his youth which he is obliged to recant in his maturity.
re (again)#cantare (to sing, chant) (Latin)
RE (again) + CANT (cannot) = "I have told you this AGAIN and AGAIN, it CANNOT be done, it has been REJECTED. " re+cant telling that it cant which means it is wrong and DISAVOWED, DISCLAIMED