6 letter words:
offend13,
5 letter words:
deffo12,
offed12,
4 letter words:
doff11,
fend8,
feod8,
fond8,
foen7,
fone7,
doen5,
done5,
node5,
3 letter words:
eff9,
off9,
def7,
dof7,
fed7,
fen6,
foe6,
fon6,
nef6,
den4,
doe4,
don4,
end4,
ned4,
nod4,
ode4,
eon3,
one3,
2 letter words:
ef5,
fe5,
of5,
de3,
do3,
ed3,
od3,
en2,
ne2,
no2,
oe2,
on2,