6 letter words:
toroth9,
5 letter words:
ortho8,
thoro8,
tooth8,
troth8,
torot5,
4 letter words:
hoot7,
thro7,
toho7,
otto4,
root4,
roto4,
toot4,
toro4,
tort4,
trot4,
3 letter words:
hoo6,
hot6,
oho6,
ooh6,
rho6,
tho6,
oor3,
oot3,
ort3,
roo3,
rot3,
too3,
tor3,
tot3,
2 letter words:
ho5,
oh5,
oo2,
or2,
to2,
