one's own bath; private bath
A bath reserved for one's own use, as opposed to a shared bath. Often used in the context of traditional inns or bathhouses where a bath can be rented privately.
See also: 留め風呂
I reserved a private bath at the inn.
reusing yesterday's bath water
Refers to the practice of keeping and reusing bath water from the previous day, often by reheating it. Common in households where water is conserved.
monthly pass for a public bath
A subscription or pass allowing unlimited use of a public bath for a month. Now mostly historical, as public baths have declined.
At our house, we keep the bath water and use it again the next day.
In the old days, people would buy a monthly pass and go to the public bath every day.
Standard kanji spelling.
Variant spelling; less common.
Compound of 留め (tome, 'stopping, keeping') + 湯 (yu, 'hot water'). The exact historical derivation is uncertain, but the word refers to water that is kept or reserved.