7 letter words:
rotifer10,
6 letter words:
forrit9,
rioter6,
5 letter words:
fetor8,
firer8,
forte8,
freit8,
frier8,
frore8,
ofter8,
refit8,
rifer8,
rifte8,
treif8,
retro5,
rorie5,
trier5,
trior5,
4 letter words:
fier7,
fire7,
fore7,
fort7,
fret7,
frit7,
froe7,
orfe7,
reft7,
reif7,
rife7,
rift7,
terf7,
tref7,
riot4,
rite4,
rore4,
rort4,
rote4,
roti4,
tier4,
tire4,
tiro4,
tirr4,
tore4,
tori4,
torr4,
trie4,
trio4,
3 letter words:
eft6,
erf6,
fer6,
fet6,
fie6,
fir6,
fit6,
foe6,
for6,
fro6,
oft6,
orf6,
ref6,
rif6,
tef6,
err3,
ire3,
ore3,
ort3,
rei3,
reo3,
ret3,
rit3,
roe3,
rot3,
tie3,
toe3,
tor3,
2 letter words:
ef5,
fe5,
if5,
of5,
er2,
et2,
io2,
it2,
oe2,
oi2,
or2,
re2,
te2,
ti2,
to2,