6 letter words:
frumps13,
femurs11,
fumers11,
5 letter words:
frump12,
femur10,
ferms10,
fumer10,
fumes10,
perms9,
prems9,
rumps9,
sperm9,
spume9,
mures7,
muser7,
puers7,
pures7,
purse7,
rumes7,
serum7,
sprue7,
spuer7,
super7,
4 letter words:
fems9,
ferm9,
fume9,
fums9,
perm8,
prem8,
rump8,
sump8,
umps8,
feus7,
furs7,
fuse7,
refs7,
serf7,
surf7,
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:
fem8,
fum8,
ump7,
efs6,
erf6,
fer6,
fes6,
feu6,
fur6,
ref6,
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:
ef5,
fe5,
em4,
me4,
mu4,
pe4,
um4,
up4,
er2,
es2,
re2,
ur2,
us2,