功こう用よう

noun

use; function; role

Obsolete term for the practical use, function, or role of something. Replaced in modern Japanese by words like 使い道, 機能, or 役割.

• 古ふるい文ぶん献けんでは「功こう用よう」が道どう具ぐの役やく割わりを指さすことがある。

  In old documents, 功用 can refer to the role of a tool.