noun, noun or participle which takes 'suru'
bowing to the floor; prostration bow
A formal, historical bow where one kneels and lowers the head to the ground, used in ancient Chinese and Japanese court ceremonies. Rare in modern everyday language; mostly encountered in historical or ritual contexts.
古代中国では、臣下が皇帝に稽首した。
In ancient China, vassals performed a bow to the floor before the emperor.
儀式
The etiquette of bowing to the floor was reenacted in the ceremony.