5 letter words:
rooky12,
brook11,
booty10,
borty10,
rooty8,
robot7,
4 letter words:
book10,
bork10,
kobo10,
boyo9,
orby9,
toby9,
koto8,
rook8,
took8,
ryot7,
tory7,
toyo7,
troy7,
tyro7,
boor6,
boot6,
bort6,
broo6,
root4,
roto4,
toro4,
3 letter words:
yok10,
kob9,
boy8,
yob8,
kor7,
toy6,
try6,
boo5,
bot5,
bro5,
orb5,
rob5,
oot3,
ort3,
rot3,
too3,
tor3,
2 letter words:
by7,
oy5,
yo5,
bo4,
or2,
to2,