Emily Dickinson Lexicon

MUS-CO-VA'DO, n. [Sp. and Port. mascabado, compounded of mas, more, but, and acabado, ended, finished. Mascabado is an adjective, signifying, further advanced in the process than when in sirup, or imperfectly finished; from acabar, to finish; ad and cabo, head, like Fr. achever.]

Unrefined sugar; the raw material from which loaf and lump sugar are procured by refining. Muscovado is obtained from the juice of the sugar cane by evaporation and draining off the liquid part called melasses. Edwards. [This word is used either as a noun or an adjective; primarily an adjective.]