5 letter words:
frump12,
femur10,
fumer10,
4 letter words:
fume9,
perm8,
rump8,
mure6,
pure6,
3 letter words:
fem8,
ump7,
fer6,
feu6,
fur6,
ref6,
emu5,
per5,
pur5,
rem5,
rep5,
rum5,
urp5,
rue3,
2 letter words:
ef5,
fe5,
em4,
me4,
mu4,
pe4,
um4,
up4,
er2,
re2,