4 letter words:
chaw12,
wham12,
cham11,
chum11,
mach11,
much11,
chad10,
duma7,
maud7,
3 letter words:
cwm10,
haw9,
wha9,
caw8,
ham8,
hum8,
maw8,
cam7,
cum7,
dah7,
daw7,
duh7,
had7,
mac7,
wad7,
wud7,
cad6,
cud6,
dam6,
mad6,
mud6,
amu5,
2 letter words:
hm7,
ah5,
aw5,
ha5,
uh5,
am4,
ma4,
mu4,
um4,
ad3,