5 letter words:
north8,
thorn8,
torah8,
trona5,
4 letter words:
hant7,
hart7,
hoar7,
hora7,
horn7,
oath7,
rath7,
tahr7,
than7,
thro7,
nota4,
rant4,
rato4,
roan4,
rota4,
tarn4,
taro4,
tora4,
torn4,
3 letter words:
hao6,
hat6,
hon6,
hot6,
nah6,
noh6,
nth6,
rah6,
rho6,
tho6,
ant3,
art3,
nor3,
not3,
oar3,
oat3,
ora3,
ort3,
ran3,
rat3,
rot3,
tan3,
tao3,
tar3,
ton3,
tor3,
2 letter words:
ah5,
ha5,
ho5,
oh5,
an2,
ar2,
at2,
na2,
no2,
on2,
or2,
ta2,
to2,