7 letter words:
ferrety13,
6 letter words:
freety12,
ferret9,
5 letter words:
ferry11,
feyer11,
fryer11,
reefy11,
refry11,
yfere11,
ferer8,
freer8,
freet8,
frere8,
refer8,
retry8,
terfe8,
terry8,
tryer8,
4 letter words:
ryfe10,
eery7,
eyer7,
eyre7,
feer7,
feet7,
fere7,
fete7,
free7,
fret7,
reef7,
reft7,
terf7,
tref7,
trey7,
trye7,
tyee7,
tyer7,
tyre7,
rete4,
teer4,
tree4,
3 letter words:
fey9,
fry9,
eft6,
erf6,
eye6,
fee6,
fer6,
fet6,
ref6,
rye6,
tef6,
try6,
tye6,
yet6,
ere3,
err3,
ree3,
ret3,
tee3,
2 letter words:
fy8,
ef5,
fe5,
ye5,
ee2,
er2,
et2,
re2,
te2,