gentlemen's room etymology

English word gentlemen's room comes from English gentleman, English wait, English toilet room, English waiting, and later English waiting room (A room in some public place for people to wait.)

Detailed word origin of gentlemen's room

Dictionary entryLanguageDefinition
gentleman English (eng) (chiefly, _, historical) A man of gentle but not noble birth, particularly a man of means (originally ownership of property) who does not work for a living but has no official status in a peerage; (UK, _, law) an armiferous man ranking below a knight.. (cricket) An amateur player, particularly one whose wealth permits him to forego payment.. (pejorative) An effeminate or oversophisticated [...]
wait English (eng) (in the plural, archaic, UK) Musicians who sing or play at night or in the early morning, especially at Christmas time; serenaders; musical watchmen. [formerly waites, wayghtes.]. (in the plural, obsolete, UK) Hautboys, or oboes, played by town musicians.. (obsolete) One who watches; a watchman.. A delay.. An ambush. (intransitive) To delay movement or action until some event or time; to [...]
toilet room English (eng) (historical) A room in which to perform one's toilet, including dressing and grooming, particularly before execution.. (originally, _, US, _, euphemism, now, _) A room in which to use a toilet: a lavatory.
waiting English (eng) (obsolete) Watching.. Attendance, service.. The act of staying or remaining in expectation.
waiting room English (eng) A room in some public place for people to wait.

Words with the same origin as gentlemen's room

Descendants of gentleman
Gentleman Jim gentlemen's agreement gentlemen's club men's
Descendants of wait
gentlemen gents
Descendants of toilet room