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Webster 1913 Edition

Noun.

[Cf.

sile

to strain, and

bub

liquor, also Prov. E.

sillibauk

A dish made by mixing wine or cider with milk, and thus forming a soft curd; also, sweetened cream, flavored with wine and beaten to a stiff froth.

[Written also

syllabub

Noun.

A liquor made by mixing wine or cider with milk, and thus forming a soft curd.

sillabub ‎(plural sillabubs)