9 letter words:
ferreting13,
8 letter words:
fingerer12,
7 letter words:
feigner11,
freeing11,
grifter11,
reefing11,
fernier10,
ferrite10,
refiner10,
integer8,
treeing8,
reinter7,
rentier7,
terrine7,
6 letter words:
feeing10,
feting10,
finger10,
fringe10,
giftee10,
ferine9,
ferret9,
refine9,
refire9,
engirt7,
erring7,
gerent7,
regent7,
regret7,
ringer7,
teeing7,
entire6,
renter6,
rerent6,
retine6,
retire6,
triene6,
5 letter words:
feign9,
grief9,
grift9,
feint8,
finer8,
firer8,
freer8,
frere8,
frier8,
infer8,
refer8,
refit8,
rifer8,
egret6,
genet6,
genie6,
genre6,
green6,
greet6,
reign6,
renig6,
rerig6,
tenge6,
tiger6,
tinge6,
enter5,
inert5,
inter5,
niter5,
nitre5,
rente5,
retie5,
terne5,
treen5,
trier5,
trine5,
4 letter words:
frig8,
gift8,
feet7,
fere7,
fern7,
fete7,
fine7,
fire7,
firn7,
free7,
fret7,
frit7,
neif7,
reef7,
reft7,
reif7,
rife7,
rift7,
tref7,
eger5,
gene5,
gent5,
gien5,
girn5,
girt5,
gite5,
gree5,
grin5,
grit5,
ring5,
ting5,
trig5,
erne4,
nite4,
rein4,
rent4,
rete4,
rite4,
teen4,
tern4,
tier4,
tine4,
tire4,
tree4,
3 letter words:
fig7,
eft6,
fee6,
fen6,
fer6,
fet6,
fie6,
fin6,
fir6,
fit6,
ref6,
rif6,
eng4,
erg4,
gee4,
gen4,
get4,
gie4,
gin4,
git4,
neg4,
reg4,
rig4,
teg4,
ere3,
ern3,
err3,
ire3,
nee3,
net3,
nit3,
ree3,
rei3,
ret3,
rin3,
tee3,
ten3,
tie3,
tin3,
2 letter words:
ef5,
fe5,
if5,
en2,
er2,
et2,
in2,
it2,
ne2,
re2,
ti2,