7 letter words:
mumpers13,
6 letter words:
mumper12,
summer10,
5 letter words:
mumps11,
perms9,
prems9,
rumps9,
sperm9,
spume9,
mures7,
muser7,
puers7,
pures7,
purse7,
rumes7,
serum7,
sprue7,
spuer7,
super7,
4 letter words:
mump10,
mems8,
mums8,
perm8,
prem8,
rump8,
sump8,
umps8,
emus6,
meus6,
mure6,
muse6,
puer6,
pure6,
purs6,
rems6,
reps6,
rume6,
rums6,
smur6,
spue6,
spur6,
supe6,
urps6,
rues4,
ruse4,
suer4,
sure4,
ures4,
user4,
3 letter words:
mem7,
mum7,
umm7,
ump7,
ems5,
emu5,
mes5,
meu5,
mus5,
per5,
pes5,
pre5,
pur5,
pus5,
rem5,
rep5,
rum5,
sum5,
sup5,
ups5,
urp5,
ers3,
res3,
rue3,
ser3,
sue3,
sur3,
ure3,
use3,
2 letter words:
mm6,
em4,
me4,
mu4,
pe4,
um4,
up4,
er2,
es2,
re2,
ur2,
us2,