5 letter words:
foots8,
forts8,
frost8,
roofs8,
roost5,
roots5,
rotos5,
stoor5,
toros5,
torso5,
4 letter words:
foot7,
fort7,
fros7,
oofs7,
orfs7,
roof7,
soft7,
oots4,
orts4,
roos4,
root4,
rost4,
roto4,
rots4,
soot4,
sort4,
toro4,
tors4,
3 letter words:
for6,
fro6,
oft6,
oof6,
orf6,
oor3,
oos3,
oot3,
ors3,
ort3,
roo3,
rot3,
sot3,
too3,
tor3,
2 letter words:
of5,
oo2,
or2,
os2,
so2,
st2,
to2,