GRUB AND BUB

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ETYMOLOGY
from grub (food) + bub (any liquor that froths or bubbles)

EXAMPLE
From: The Busy Bee, 
Or, Vocal Repository. 
Being a Selection of the Most Favourite Songs, etc., contained in the English Operas
Volume II. 1790
CIII. Tune, Fal de ral Tit.
P. 123