zuru verb, intransitive verb
satisfy; serve the purpose; be convenient
Intransitive zuru-verb meaning that something meets a need, fulfills a function, or is suitable for a purpose. Often used in formal or written contexts. The modern equivalent is 便じる (べんじる).
この道具はその目的に便ずる。
This tool serves that purpose.
簡便な方法
A simple method may sometimes suffice.