D2E1S1E1R1T1I1F4Y4I1N1G2
20 points
DESERTIFYING is validvalid
DESERTIFY, [v DESERTIFIED, DESERTIFIES, DESERTIFYING] : DESERTIFICATION [v]
DESERTIFY, to make into a desert [v]
DESERTIFY, [v DESERTIFIED, DESERTIFIES, DESERTIFYING] : DESERTIFICATION [v]
DESERTIFY, to make into a desert [v]