inner parlor; back room; salon
A traditional Japanese room located deeper inside a house, often used for receiving guests or as a family living space. Contrasts with 表座敷 (front parlor).
See also: 表座敷
I showed the guest into the inner parlor.
From the inner parlor of this inn, you can see the garden well.
Compound of 奥 (oku, 'inner') and 座敷 (zashiki, 'tatami room'). The exact historical derivation is straightforward.