Dactyl-
Greek; digit
Dasy-
Greek; woolly
De-
Latin; down away
Dendr-
Greek; tree
Dent-
Latin; tooth
Derm-/dermato-
Greek; skin
Di-/du-/dy-
Greek; two
Dia-
Greek; through
Dicty-
Greek; net
Dis-/dif-
Latin; away, reverse
Duc-/-duct
Latin; to lead, carry
Dys-
Greek; abnormal, diseased