R₁E₁T₁R₁O₁G₂R₁E₁S₁S₁

11 points

RETROGRESS is validvalid

[v RETROGRESSED, RETROGRESSES, RETROGRESSING]

139,051 of 196,601 in NWL2023·also valid in CSW24

to show backward movement, degenerate [v -ED, -ING, -ES]

206,747 of 280,887 in CSW24·also valid in NWL2023