5 letter words:
chack16,
chock16,
acock13,
chaco12,
coach12,
cohab12,
bacco11,
bocca11,
caboc11,
4 letter words:
hack13,
hock13,
back12,
bock12,
cock12,
bach11,
choc11,
coch11,
hoka11,
koha11,
boak10,
chao9,
coca8,
3 letter words:
bok9,
kab9,
kob9,
ach8,
bah8,
boh8,
cha8,
hob8,
hoc8,
och8,
bac7,
cab7,
cob7,
koa7,
oak7,
oka7,
hao6,
hoa6,
abo5,
boa5,
oba5,
oca5,
2 letter words:
ch7,
ka6,
ko6,
ah5,
ha5,
ho5,
oh5,
ab4,
ba4,
bo4,
ob4,