8 letter words:
backband19,
5 letter words:
aback13,
babka13,
kabab13,
banak11,
dabba10,
aband8,
banda8,
4 letter words:
back12,
dack11,
bank10,
nabk10,
dank9,
abac8,
abba8,
baba8,
banc8,
caba8,
kana8,
band7,
nada5,
3 letter words:
kab9,
dak8,
abb7,
aka7,
bac7,
cab7,
bad6,
cad6,
dab6,
aba5,
baa5,
ban5,
caa5,
can5,
nab5,
and4,
dan4,
ana3,
2 letter words:
ka6,
ab4,
ba4,
ad3,
da3,
aa2,
an2,
na2,