4 letter words:
ruff10,
toff10,
tuff10,
foot7,
fort7,
four7,
roof7,
tofu7,
turf7,
root4,
roto4,
rout4,
toro4,
tour4,
3 letter words:
off9,
for6,
fou6,
fro6,
fur6,
oft6,
oot3,
ort3,
our3,
out3,
rot3,
rut3,
too3,
tor3,
2 letter words:
of5,
or2,
to2,
ut2,