5 letter words:
brook11,
brood8,
dobro8,
droop8,
4 letter words:
book10,
bork10,
kobo10,
pork10,
dork9,
rook8,
dorp7,
drop7,
pood7,
prod7,
boor6,
broo6,
poor6,
door5,
odor5,
ordo5,
rood5,
3 letter words:
kob9,
kop9,
bop7,
kor7,
bod6,
pod6,
boo5,
bro5,
orb5,
poo5,
pro5,
rob5,
dor4,
rod4,
2 letter words:
bo4,
op4,
do3,
od3,
or2,