4 letter words:
bank10,
bonk10,
knap10,
knob10,
knop10,
kaon8,
koan8,
fano7,
3 letter words:
kaf10,
kab9,
kob9,
kop9,
fab8,
fob8,
fop8,
bap7,
bop7,
koa7,
oak7,
oka7,
fan6,
fon6,
oaf6,
abo5,
apo5,
ban5,
boa5,
nab5,
nap5,
nob5,
oba5,
pan5,
2 letter words:
ka6,
fa5,
of5,
ab4,
ba4,
bo4,
op4,
pa4,
an2,
na2,
no2,
on2,