7 letter words:
fatuity13,
5 letter words:
fatty11,
tufty11,
4 letter words:
fiat7,
tufa7,
tuft7,
taut4,
3 letter words:
fay9,
aft6,
fat6,
fit6,
ait3,
att3,
tat3,
tau3,
tit3,
tui3,
tut3,
uta3,
2 letter words:
ay5,
fa5,
if5,
ya5,
ai2,
at2,
it2,
ta2,
ti2,
ut2,