4 letter words:
holk11,
hulk11,
kohl11,
bork10,
bulk10,
buhl9,
buhr9,
lurk8,
hour7,
hurl7,
blur6,
burl6,
lour4,
3 letter words:
kob9,
hob8,
hub8,
kor7,
rho6,
bro5,
bur5,
lob5,
orb5,
rob5,
rub5,
urb5,
our3,
2 letter words:
ho5,
oh5,
uh5,
bo4,
lo2,
or2,