6 letter words:
potato8,
5 letter words:
panto7,
potto7,
punto7,
puton7,
putto7,
unapt7,
tanto5,
taunt5,
tauon5,
4 letter words:
poop8,
pupa8,
atop6,
pant6,
poon6,
pout6,
puna6,
punt6,
putt6,
topo6,
upon6,
aunt4,
auto4,
nota4,
onto4,
otto4,
taut4,
toon4,
toot4,
tout4,
tuna4,
unto4,
3 letter words:
app7,
pap7,
pop7,
pup7,
apo5,
apt5,
nap5,
opt5,
pan5,
pat5,
poo5,
pot5,
pun5,
put5,
tap5,
top5,
tup5,
upo5,
ant3,
att3,
noo3,
not3,
nut3,
oat3,
ono3,
oot3,
out3,
tan3,
tao3,
tat3,
tau3,
ton3,
too3,
tot3,
tun3,
tut3,
uta3,
2 letter words:
op4,
pa4,
up4,
an2,
at2,
na2,
no2,
nu2,
on2,
ta2,
to2,
un2,
ut2,