Emily Dickinson Lexicon

AM-BRO'SIA, n. [ambro'zha; Gr. α neg. and βροτος, mortal, because it was supposed to confer immortality on them that fed on it.]

1. In heathen antiquity, the imaginary food of the gods. Hence,
2. Whatever is very pleasing to the taste or smell. The name has also been given to certain alexipharmac compositions.
3. A genus of plants.