ETYM probably shortened from Prov. Eng. rumbullion a great tumult, formerly applied in the island of Barbadoes to an intoxicating liquor.
Distilled from fermented molasses.
Spirit fermented and distilled from sugar cane. Scummings from the sugar pans produce the best rum, molasses the lowest grade. Puerto Rico and Jamaica are the main producing countries.

1. (chiefly British) Queer, odd
2. (chiefly British) Difficult, dangerous

Or Rhum; Island of the Inner Hebrides, Highland Region, Scotland, area 110 sq km/42 sq mi, a nature reserve from 1957. Askival is 810 m/2,658 ft high.