Meaning

noun any strong spirits (such as strong whisky or rum)

originA calque of a Native American language term, probably Ojibwe ishkodewaaboo (“alcohol”), from ishkodew- (“fire”) + -aaboo (“liquid”, glossed in older works as “water”). A number of other Algonquian, Siouan and Athabaskan languages also refer to whiskey with compounds that mean "fire-water" (on which basis noted Algonquianist Leonard Bloomfield even reconstructed a Proto-Algonquian word for it,…

Etymology from Wiktionary, CC BY-SA 3.0