(Homonym: horse).
1. Having a harsh, rough, grating voice or sound, as when affected with a cold; making a rough, harsh cry or sound.
2. Harsh; grating; discordant; -- said of any sound.

1. Covered with mud.
2. Thick or tainted with mud
3. Confused, as if clouded by mud; unclear or incoherent.

ETYM Latin raucus.
1. Disturbing the public peace; loud and rough; SYN. rowdy.
2. Unpleasantly loud and harsh; SYN. strident.