I. prōˈgrād intransitive verb
Etymology: Latin pro- forward + English grade — more at pro-
: to build outward toward the sea by deposition of sediment
the shoreward transportation will be the dominating force, and the beach will prograde — F.P.Shepard
on advancing, or prograding, coasts where the waves are throwing up sand — C.A.Cotton
II. ˈprō¦grād adjective
Etymology: pro- (as in progress ) + -grade (as in retrograde )
: having or being a direction of rotation or revolution that is counterclockwise as viewed from the north pole of the sky or a planet