leapfrog , v :
(transitive) To jump over some obstacle, as in the game of leapfrog.
(transitive) To overtake.
(intransitive) To progress.
(transitive, chiefly Britain, law) Of a case: to appeal or allow to be appealed directly to a supreme court, bypassing an intermediate appellate court.
(transitive, military) To advance by engaging the enemy with one unit while another moves further forward.