Saloon
early 18th century (in the sense ‘drawing room’): from French salon, from Italian salone ‘large hall’, augmentative of sala ‘hall’.
wiktionary
From French salon, either augmentative of salle(“room”), or borrowed from Italian salone(“hall”), augmentative form of sala, salla(“room”); in both cases borrowed from a Germanic source such as Old High German sal(“house, hall”), from Proto-Germanic *salą, from Proto-Indo-European *sol-, derived from *sel-(“dwelling”). Doublet of salon.
etymonline
saloon (n.)
1728, Englished form of salon, and originally used interchangeable with it. Meaning "large hall in a public place for entertainment, etc." is from 1747; especially a passenger boat from 1817, also used of railway cars furnished like drawing rooms (1842). Sense of "public bar" developed by 1841, American English.
