8 letter words:
referent11,
repenter10,
7 letter words:
preener9,
preteen9,
terpene9,
enterer7,
reenter7,
terreen7,
terrene7,
6 letter words:
prefer11,
ferret9,
reefer9,
perter8,
repent8,
entree6,
eterne6,
renter6,
rerent6,
retene6,
teener6,
5 letter words:
freer8,
frere8,
refer8,
peter7,
preen7,
tepee7,
enter5,
rente5,
terne5,
treen5,
4 letter words:
feet7,
fere7,
fern7,
fete7,
free7,
fret7,
reef7,
reft7,
tref7,
epee6,
neep6,
peen6,
peer6,
pent6,
pere6,
pert6,
pree6,
erne4,
rent4,
rete4,
teen4,
tern4,
tree4,
3 letter words:
eft6,
fee6,
fen6,
fer6,
fet6,
ref6,
pee5,
pen5,
per5,
pet5,
rep5,
ere3,
ern3,
err3,
nee3,
net3,
ree3,
ret3,
tee3,
ten3,
2 letter words:
ef5,
fe5,
pe4,
en2,
er2,
et2,
ne2,
re2,