7 letter words:
caroach14,
6 letter words:
caroch13,
5 letter words:
coach12,
orach10,
roach10,
aargh9,
cacao9,
cargo8,
agora6,
4 letter words:
arch9,
chao9,
char9,
agha8,
caca8,
coca8,
croc8,
crag7,
haar7,
hoar7,
hora7,
arco6,
orca6,
agar5,
raga5,
3 letter words:
hag7,
hog7,
aah6,
aha6,
cog6,
hao6,
rah6,
rho6,
arc5,
car5,
cor5,
oca5,
orc5,
roc5,
aga4,
ago4,
gar4,
goa4,
gor4,
rag4,
oar3,
ora3,
2 letter words:
ah5,
ha5,
ho5,
oh5,
ag3,
go3,
aa2,
ar2,
or2,