Emily Dickinson Lexicon

RUM, n. [Perhaps from rheum, a flowing. In an old author, it is written rhum.]

1. Spirit distilled from cane juice; or the it is press of the juice from the boiling-house, or from the treacle or melasses which drains from sugar, or from dunder, the lees of former distillations. Edwards, W. Ind. In the United States, rum is distilled from melasses only.
2. A low cant word for a country parson. Swift.