5 letter words:
feyer11,
reefy11,
4 letter words:
eery7,
eyer7,
eyre7,
feet7,
fere7,
fete7,
free7,
fret7,
reef7,
reft7,
tref7,
trey7,
tyee7,
tyer7,
tyre7,
rete4,
tree4,
3 letter words:
fey9,
fry9,
eft6,
eye6,
fee6,
fer6,
fet6,
ref6,
rye6,
try6,
tye6,
yet6,
ere3,
ree3,
ret3,
tee3,
2 letter words:
ef5,
fe5,
ye5,
er2,
et2,
re2,