5 letter words:
rhumb12,
rheum10,
brume9,
umber9,
4 letter words:
buhr9,
herb9,
herm9,
berm8,
mure6,
rube6,
3 letter words:
hem8,
hub8,
hum8,
bum7,
her6,
hue6,
bur5,
emu5,
reb5,
rem5,
rub5,
rum5,
urb5,
rue3,
2 letter words:
hm7,
eh5,
he5,
uh5,
be4,
em4,
me4,
mu4,
um4,
er2,
re2,