禊みそぐ

yodan verb with 'gu' ending (archaic), intransitive verb

purify oneself; cleanse spiritually; repent

Archaic intransitive verb referring to ritual purification, especially in Shinto or classical contexts. Modern Japanese uses 禊をする or 身を清める instead.

• 古こ事じ記きには、伊邪那岐いざなぎの命みことが筑紫つくしの日ひ向むかの橘たちばなの小門をどの阿あ波は岐ぎ原はらで禊みそぎたまひきとある。

  In the Kojiki, it is written that Izanagi-no-Mikoto purified himself at Awagihara by the river-mouth of Tachibana in Himuka of Tsukushi.