noun
Historical term for an Edo-period establishment where licensed prostitutes (遊女) worked. Not used for modern brothels.
江戸時代、吉原には多くの遊女屋が並んでいた。
In the Edo period, many brothels lined the streets of Yoshiwara.
売春宿 is a modern, general term for a brothel, whereas 遊女屋 is specifically historical and tied to the licensed quarters.
Compound of 遊女 (courtesan, prostitute) and 屋 (shop, establishment).