noun
Archaic term for a place where archery was practiced. In modern Japanese, 矢庭 is almost never used independently; it survives mainly in the set phrase 矢庭に (suddenly, immediately), which is itself archaic or literary.
See also: 矢庭に
古い文献には、武士たちが矢庭で稽古に励んだ様子が記されている。
Old documents describe how warriors trained diligently at the archery range.
The adverbial form 矢庭に means 'suddenly' or 'immediately' and is the only common survival of this word in modern Japanese, though it is still archaic or literary.
The exact derivation is uncertain. The kanji 矢 (arrow) and 庭 (garden, yard) suggest a place for shooting arrows, but the word is now archaic.