7 letter words:
gummous12,
5 letter words:
momus9,
mumus9,
4 letter words:
moms8,
mums8,
mumu8,
gums7,
mogs7,
mugs7,
smog7,
smug7,
sumo6,
3 letter words:
mom7,
mum7,
umm7,
gum6,
mog6,
mug6,
mos5,
mus5,
oms5,
som5,
sum5,
gos4,
sou3,
2 letter words:
mm6,
mo4,
mu4,
om4,
um4,
go3,
os2,
so2,
us2,
