sullage
Concise Oxford English Dictionary © 2008 Oxford University Press:
sullage /ˈsʌlɪdʒ/
▶noun
- 1 waste from household sinks, showers, and baths, but not toilets.
- 2 archaic refuse, especially sewage.
– origin C16: perh. from Anglo-Norman Fr. suillage, from suiller ‘to soil’.
'sullage' also found in these Oxford entries:

