4 letter words:
cozy18,
cowy12,
yows10,
bows9,
boys9,
cosy9,
cows9,
coys9,
scow9,
swob9,
sybo9,
yobs9,
cobs8,
3 letter words:
coz14,
yow9,
bow8,
boy8,
bys8,
cow8,
coy8,
yob8,
cob7,
sow6,
soy6,
wos6,
bos5,
cos5,
sob5,
2 letter words:
by7,
ow5,
oy5,
wo5,
yo5,
bo4,
os2,
so2,