STILLROOM
stillroom, still room
(noun) a pantry or storeroom connected with the kitchen (especially in a large house) for preparing tea and beverages and for storing liquors and preserves and tea etc
Source: WordNet® 3.1
Etymology
Noun
stillroom (plural stillrooms)
A room containing a still (for distillation).
A pantry adjoining a kitchen where drinks etc were stored or prepared.
Source: Wiktionary
Still"room`, n.
1. A room for distilling.
2. An apartment in a house where liquors, preserves, and the like,
are kept. [Eng.]
Floors are rubbed bright, . . . stillroom and kitchen cleared for
action. Dickens.
Source: Webster’s Unabridged Dictionary 1913 Edition