4 letter words:
kaif11,
tiff10,
toff10,
ikat8,
fiat7,
iota4,
3 letter words:
kaf10,
kif10,
aff9,
iff9,
off9,
kat7,
kit7,
koa7,
koi7,
oak7,
oka7,
aft6,
fat6,
fit6,
oaf6,
oft6,
ait3,
oat3,
tao3,
2 letter words:
ka6,
ki6,
fa5,
if5,
of5,
ai2,
at2,
it2,
oi2,
ta2,
ti2,
to2,