the world > food and drink > drink > intoxicating liquor > [noun] > a drink of > taken at night (5)
Liquor for drinking at night. Obsolete. rare.
a portion of liquor taken just before bed-time; also figurative.
A drink, esp. an alcoholic one, taken at the end of an evening, often immediately before going to bed in order to induce sleep.
a drink taken before going to bed, a nightcap.