5 letter words:
donko10,
drook10,
kondo10,
kroon9,
donor6,
doorn6,
rondo6,
4 letter words:
dook9,
dork9,
kond9,
koro8,
nook8,
nork8,
rook8,
doon5,
door5,
odor5,
ordo5,
rood5,
roon4,
3 letter words:
kon7,
kor7,
rok7,
don4,
doo4,
dor4,
nod4,
ord4,
rod4,
noo3,
nor3,
ono3,
oon3,
oor3,
roo3,
2 letter words:
ko6,
do3,
od3,
no2,
on2,
oo2,
or2,