noun, noun or participle which takes 'suru'
washing hands and rinsing mouth
Formal, literary term for the act of washing one's hands and rinsing one's mouth, often as a ritual or thorough cleansing. Rare in everyday speech; more common terms are 手洗い and うがい.
古い作法では、食前に盥漱することが求められた。
In old etiquette, one was required to wash hands and rinse mouth before meals.
「盥漱
The word 盥漱 is hardly used in modern times.