6 letter words:
shtumm13,
5 letter words:
musth10,
shtum10,
stumm9,
4 letter words:
hums9,
mush9,
mums8,
huts7,
shut7,
thus7,
tush7,
must6,
muts6,
smut6,
stum6,
tums6,
3 letter words:
hmm10,
hum8,
mum7,
umm7,
hut6,
mus5,
mut5,
sum5,
tum5,
uts3,
2 letter words:
hm7,
mm6,
sh5,
uh5,
mu4,
um4,
st2,
us2,
ut2,
