regredior

recedentia – disappearance, distant, ebbing, far, retreat
recedo – depart, disappear, pass away, retire, retreat, to fall back, to go back, withdraw
recepi – recede, retire, retreat, to go back
receptum – recede, retire, retreat, to go back
recessus – a going back, place of retreat, quiet place, retreat
recipio – recede, retire, retreat, to go back
reddo – answer, deliver, hand over, imitate, pay up, recite, render, represent, restore, return, surrender, to give back, to impart, to repeat, translate
redeo – be brought to, be reduced to, come back, fall back upon, return, to be reduced to, to come in, to fall back upon, to go back
reditus – income, return, revenue, reward
reduco – bring back, return, to lead back

retrogradior – to go backwards
reor – decide, suppose, to think
revereor – to stand in awe
aggredior – address, approach, attack, begin, to go to
congredior – to accost
digredior – deviate, digress, to depart
egredior – depart, exit, leave, to come out, to go out
ingredior – begin on, enter, go in, to begin to, to enter upon, to step in, walk
progredior – ce, go out, proceed, to go forth, to march forward
transgredior – to pass beyond

re·gre·di·or[1]