6 letter words:
thoria9,
5 letter words:
airth8,
torah8,
ratio5,
4 letter words:
hair7,
hart7,
hoar7,
hora7,
oath7,
ohia7,
rath7,
tahr7,
thio7,
thir7,
thro7,
airt4,
iota4,
rato4,
riot4,
rota4,
roti4,
taro4,
tiro4,
tora4,
tori4,
trio4,
3 letter words:
ahi6,
hao6,
hat6,
hit6,
hot6,
rah6,
rho6,
tho6,
air3,
ait3,
art3,
oar3,
oat3,
ora3,
ort3,
rai3,
rat3,
ria3,
rot3,
tao3,
tar3,
tor3,
2 letter words:
ah5,
ha5,
hi5,
ho5,
oh5,
ai2,
ar2,
at2,
it2,
oi2,
or2,
ta2,
ti2,
to2,
