5 letter words:
faker12,
freak12,
4 letter words:
fake11,
kerf11,
raff10,
rake8,
fare7,
fear7,
frae7,
3 letter words:
kaf10,
kef10,
aff9,
eff9,
ark7,
kae7,
kea7,
arf6,
far6,
fer6,
ref6,
are3,
ear3,
era3,
2 letter words:
ka6,
ef5,
fa5,
fe5,
ae2,
ar2,
er2,
re2,