5 letter words:
staff11,
4 letter words:
pfft12,
fast7,
fats7,
saft7,
apts6,
past6,
pats6,
spat6,
stap6,
taps6,
3 letter words:
aff9,
fap8,
aft6,
fas6,
fat6,
apt5,
asp5,
pas5,
pat5,
pst5,
sap5,
spa5,
tap5,
sat3,
tas3,
2 letter words:
fa5,
pa4,
as2,
at2,
st2,
ta2,