noun
nearby (one's seat); by one's side
Formal, somewhat literary term for the area near where someone is seated; often used in respectful contexts.
どうぞ座下にお座りください。
Please have a seat nearby.
noun
Used in formal letters after the recipient's name, similar to 'Dear' or 'Esquire'; now rare and mostly historical.
古い手紙では「山田太郎座下」のように使われた。
In old letters, it was used like 'Dear Taro Yamada'.