背戸 (せど, sedo) Japanese meaning: back door | Kotomora背
戸
に
は
小
さな
庭
が
あっ
た
。
There was a small garden at the back entrance of the old house.
裏背戸
Etymology
背 (back) + 戸 (door). The reading せ is an older or alternative reading of 背, and ど is a voiced form of 戸 (と).