from
The Collaborative International Dictionary of English v.0.48
Sullage \Sul"lage\, n. [Cf. {Suillage}, {Sulliage}.]
1. Drainage of filth; filth collected from the street or
highway; sewage. [Obs.]
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The streets were exceedingly large, well paved,
having many vaults and conveyances under them for
sullage. --Evelyn.
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2. That which sullies or defiles. [Obs.]
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It is the privilege of the celestial luminaries to
receive no tincture, sullage, or difilement from the
most noisome sinks and dunghills here below.
--South.
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3. (Founding) The scoria on the surface of molten metal in
the ladle.
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4. (Hydraul. Engin.) Silt; mud deposited by water.
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{Sullage piece} (Founding), the sprue of a casting. See
{Sprue}, n., 1
(b) .
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