9 letter words:
excretory21,
7 letter words:
coexert16,
rectory12,
erector9,
6 letter words:
cortex15,
rector8,
retore6,
5 letter words:
oxeye15,
exert12,
oxter12,
coyer10,
retry8,
terry8,
toyer8,
corer7,
crore7,
erect7,
recto7,
terce7,
retro5,
4 letter words:
oryx14,
exec13,
cory9,
eery7,
eyer7,
eyre7,
oyer7,
ryot7,
tory7,
trey7,
troy7,
tyee7,
tyer7,
tyre7,
tyro7,
yore7,
cere6,
cero6,
cete6,
core6,
cote6,
torc6,
rete4,
rote4,
tore4,
torr4,
tree4,
3 letter words:
oxy13,
cox12,
rex10,
coy8,
cry8,
eye6,
rye6,
toy6,
try6,
tye6,
yet6,
cee5,
cor5,
cot5,
orc5,
rec5,
roc5,
ere3,
err3,
ore3,
ort3,
ree3,
ret3,
roe3,
rot3,
tee3,
toe3,
tor3,
2 letter words:
ex9,
ox9,
oy5,
ye5,
yo5,
er2,
et2,
oe2,
or2,
re2,
to2,