9 letter words:
mumpsimus17,
5 letter words:
mumms11,
mumps11,
mumus9,
piums9,
simps9,
spims9,
sumps9,
4 letter words:
mumm10,
mump10,
imps8,
mips8,
mums8,
mumu8,
pium8,
simp8,
spim8,
sump8,
umps8,
isms6,
miss6,
muss6,
piss6,
psis6,
puss6,
sims6,
sips6,
sums6,
sups6,
susu4,
3 letter words:
imp7,
mim7,
mum7,
umm7,
ump7,
ism5,
mis5,
mus5,
pis5,
piu5,
psi5,
pus5,
sim5,
sip5,
sum5,
sup5,
umu5,
ups5,
sis3,
sui3,
sus3,
2 letter words:
mm6,
mi4,
mu4,
pi4,
um4,
up4,
is2,
si2,
us2,