10 letter words:
preferring16,
9 letter words:
referring13,
8 letter words:
fingerer12,
refringe12,
inferrer11,
peregrin11,
7 letter words:
perfing13,
prefire12,
feering11,
feigner11,
freeing11,
griefer11,
reefing11,
fernier10,
peering10,
preeing10,
refiner10,
perrier9,
repiner9,
ripener9,
6 letter words:
perfin11,
prefer11,
preife11,
priefe11,
feeing10,
finger10,
fringe10,
enfire9,
feerin9,
ferine9,
fineer9,
griper9,
infere9,
peeing9,
pinger9,
refine9,
refire9,
repine8,
erring7,
girner7,
ringer7,
5 letter words:
preif10,
prief10,
feign9,
grief9,
ferer8,
fiere8,
finer8,
firer8,
freer8,
frere8,
frier8,
genip8,
gripe8,
infer8,
refer8,
repeg8,
rifer8,
neper7,
penie7,
preen7,
prier7,
repin7,
ripen7,
riper7,
eigne6,
ering6,
genie6,
genre6,
gerne6,
green6,
grein6,
niger6,
regie6,
reign6,
renig6,
rerig6,
4 letter words:
frig8,
feen7,
feer7,
feni7,
fere7,
fern7,
fier7,
fine7,
fire7,
firn7,
free7,
geep7,
grip7,
neif7,
nief7,
nife7,
ping7,
prig7,
reef7,
reif7,
rife7,
neep6,
peen6,
peer6,
pein6,
pene6,
peni6,
pere6,
peri6,
pern6,
pier6,
pine6,
pirn6,
pree6,
ripe6,
eger5,
gene5,
gere5,
gien5,
girn5,
girr5,
gree5,
gren5,
grin5,
ring5,
eine4,
erne4,
reen4,
rein4,
rine4,
3 letter words:
feg7,
fig7,
gif7,
erf6,
fee6,
fen6,
fer6,
fie6,
fin6,
fir6,
gip6,
nef6,
peg6,
pig6,
ref6,
rif6,
nep5,
nip5,
pee5,
pen5,
per5,
pie5,
pin5,
pir5,
pre5,
rep5,
rip5,
eng4,
erg4,
gee4,
gen4,
gie4,
gin4,
neg4,
reg4,
rig4,
een3,
ene3,
ere3,
ern3,
err3,
ire3,
nee3,
nie3,
ree3,
rei3,
ren3,
rin3,
2 letter words:
ef5,
fe5,
if5,
pe4,
pi4,
gi3,
ee2,
en2,
er2,
in2,
ne2,
re2,
