8 letter words:
frenulum13,
6 letter words:
frenum11,
rueful9,
unfurl9,
urnful9,
unrule6,
5 letter words:
femur10,
flume10,
fumer10,
lemur7,
lumen7,
rumen7,
4 letter words:
ferm9,
fume9,
enuf7,
fern7,
flue7,
fuel7,
furl7,
menu6,
merl6,
mule6,
mure6,
murl6,
neum6,
rume6,
lune4,
lure4,
nurl4,
rule4,
rune4,
3 letter words:
fem8,
fum8,
elf6,
erf6,
fen6,
fer6,
feu6,
flu6,
fun6,
fur6,
nef6,
ref6,
elm5,
emu5,
lum5,
mel5,
men5,
meu5,
mun5,
rem5,
rum5,
umu5,
ern3,
leu3,
lur3,
nur3,
ren3,
rue3,
run3,
ule3,
ulu3,
ure3,
urn3,
2 letter words:
ef5,
fe5,
em4,
me4,
mu4,
um4,
el2,
en2,
er2,
ne2,
nu2,
re2,
un2,
ur2,
