SYLLABUB
syllabub, sillabub
(noun) sweetened cream beaten with wine or liquor
syllabub, sillabub
(noun) spiced hot milk with rum or wine
Source: WordNet® 3.1
Etymology
Noun
syllabub (countable and uncountable, plural syllabubs)
A drink dating back to the 16th century consisting primarily of milk curdled with an alcoholic beverage or some acid such as lemon juice, which is usually then sweetened and spiced. [from 16th c.]
Also everlasting syllabub or solid syllabub: a dessert pudding derived from the drink. [from 16th c.]
(dated, figuratively) Something lacking substance; something frothy, insubstantial, or lightweight.
Usage notes
Not to be confused with syllabus.
Source: Wiktionary
Syl"la*bub, n.
Definition: Same as Syllabub.
Source: Webster’s Unabridged Dictionary 1913 Edition