9 letter words:
superfirm16,
8 letter words:
frumpier15,
7 letter words:
ferrums12,
firmers12,
impurer11,
primers11,
spumier11,
umpires11,
friseur10,
surfier10,
murries9,
pursier9,
upriser9,
6 letter words:
frumps13,
femurs11,
fermis11,
ferrum11,
firmer11,
fumers11,
fumier11,
impure10,
primer10,
primes10,
primus10,
purism10,
simper10,
spirem10,
umpire10,
firers9,
friers9,
furies9,
surfer9,
murres8,
priers8,
purser8,
rimers8,
sprier8,
uprise8,
5 letter words:
frump12,
femur10,
fermi10,
firms10,
fumer10,
fumes10,
perms9,
prime9,
prims9,
prism9,
rumps9,
sperm9,
spume9,
firer8,
fires8,
frier8,
fries8,
frise8,
reifs8,
rifer8,
serif8,
emirs7,
mires7,
miser7,
mures7,
murre7,
murrs7,
muser7,
peris7,
piers7,
prier7,
pries7,
prise7,
purer7,
puris7,
purrs7,
purse7,
rimer7,
rimes7,
riper7,
ripes7,
serum7,
sirup7,
speir7,
spier7,
spire7,
sprue7,
super7,
riser5,
ruers5,
sieur5,
surer5,
4 letter words:
fems9,
firm9,
fume9,
pfui9,
imps8,
mips8,
perm8,
prim8,
rump8,
simp8,
sump8,
umps8,
feus7,
fire7,
firs7,
furs7,
fuse7,
refs7,
reif7,
rife7,
rifs7,
seif7,
serf7,
surf7,
emir6,
emus6,
mire6,
mirs6,
mise6,
mure6,
murr6,
muse6,
peri6,
pier6,
pies6,
pure6,
puri6,
purr6,
purs6,
rems6,
reps6,
rime6,
rims6,
ripe6,
rips6,
rums6,
semi6,
sipe6,
spue6,
spur6,
supe6,
urps6,
errs4,
ires4,
reis4,
rise4,
ruer4,
rues4,
ruse4,
sire4,
suer4,
sure4,
user4,
3 letter words:
fem8,
imp7,
ump7,
efs6,
fer6,
fes6,
feu6,
fie6,
fir6,
fur6,
ifs6,
ref6,
rif6,
ems5,
emu5,
ism5,
mir5,
mis5,
mus5,
per5,
pes5,
pie5,
pis5,
piu5,
psi5,
pur5,
pus5,
rem5,
rep5,
rim5,
rip5,
rum5,
sim5,
sip5,
sum5,
sup5,
ups5,
urp5,
err3,
ers3,
ire3,
rei3,
res3,
rue3,
sei3,
ser3,
sir3,
sri3,
sue3,
use3,
2 letter words:
ef5,
fe5,
if5,
em4,
me4,
mi4,
mu4,
pe4,
pi4,
um4,
up4,
er2,
es2,
is2,
re2,
si2,
us2,
