6 letter words:
dodder9,
rodded9,
5 letter words:
odder7,
roded7,
4 letter words:
eddo6,
redd6,
dero5,
doer5,
dore5,
redo5,
rode5,
roed5,
3 letter words:
dod5,
odd5,
doe4,
dor4,
ode4,
ord4,
red4,
rod4,
ore3,
reo3,
roe3,
2 letter words:
de3,
do3,
ed3,
od3,
er2,
oe2,
or2,
re2,