noun
Dated term for a brothel; in modern Japanese, 売春宿 or ソープランド are more common. The kanji 淫売 carries a strong negative connotation.
昔の小説には淫売宿がよく登場する。
Brothels often appear in old novels.
Compound of 淫売 (inbai, 'prostitution') + 宿 (yado, 'inn'). The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning.