4 letter words:
oath7,
ohia7,
tath7,
that7,
thio7,
iota4,
tait4,
toit4,
3 letter words:
ahi6,
hao6,
hat6,
hit6,
hoa6,
hoi6,
hot6,
tho6,
ait3,
att3,
ita3,
oat3,
tai3,
tao3,
tat3,
tit3,
tot3,
2 letter words:
ah5,
ha5,
hi5,
ho5,
oh5,
ai2,
at2,
io2,
it2,
oi2,
ta2,
ti2,
to2,