6 letter words:
kabaka16,
5 letter words:
aback13,
abaka11,
abaca9,
4 letter words:
jack17,
jock17,
back12,
bock12,
kaka12,
3 letter words:
jab12,
job12,
kab9,
kob9,
cab7,
cob7,
koa7,
oak7,
oka7,
aba5,
abo5,
baa5,
boa5,
oba5,
oca5,
2 letter words:
jo9,
ka6,
ab4,
ba4,
bo4,
aa2,