8 letter words:
autoharp13,
6 letter words:
prutah11,
author9,
5 letter words:
prahu10,
thorp10,
arhat8,
routh8,
torah8,
apart7,
aport7,
pruta7,
aorta5,
4 letter words:
harp9,
opah9,
ouph9,
path9,
phat9,
phot9,
phut9,
toph9,
haar7,
hart7,
haut7,
hoar7,
hora7,
hour7,
hurt7,
oath7,
rath7,
ruth7,
tahr7,
thou7,
thro7,
thru7,
atap6,
atop6,
para6,
part6,
port6,
pour6,
pout6,
prao6,
prat6,
prau6,
proa6,
rapt6,
roup6,
tapa6,
tarp6,
trap6,
trop6,
aura4,
auto4,
rato4,
rota4,
rout4,
taro4,
tora4,
tour4,
3 letter words:
hap8,
hop8,
hup8,
pah8,
pht8,
poh8,
aah6,
aha6,
hao6,
hat6,
hot6,
hut6,
rah6,
rho6,
tho6,
apo5,
apt5,
opt5,
par5,
pat5,
pot5,
pro5,
pur5,
put5,
rap5,
tap5,
top5,
tup5,
upo5,
urp5,
art3,
oar3,
oat3,
ora3,
ort3,
our3,
out3,
rat3,
rot3,
rut3,
tao3,
tar3,
tau3,
tor3,
uta3,
2 letter words:
ah5,
ha5,
ho5,
oh5,
uh5,
op4,
pa4,
up4,
aa2,
ar2,
at2,
or2,
ta2,
to2,
ut2,