DUMBWAITER
dumbwaiter, food elevator
(noun) a small elevator used to convey food (or other goods) from one floor of a building to another
Source: WordNet® 3.1
Etymology
Noun
dumbwaiter (plural dumbwaiters)
A small elevator used to move food etc. from one floor of a building to another.
(obsolete) A table or set of trays on rollers used for serving food.
(obsolete) A lazy Susan.
Source: Wiktionary
Dumb"-wait`er, n.
Definition: A framework on which dishes, food, etc., are passed from one
room or story of a house to another; a lift for dishes, etc.; also, a
piece of furniture with movable or revolving shelves.
Source: Webster’s Unabridged Dictionary 1913 Edition