Borrowed from Japanese 黄泉 (yomi).
Yomi
- The Japanese underworld, whose exits are guarded by horrible creatures.
2017, Helen Hardacre, Shinto: A History, Oxford University Press, →ISBN, page 51:After Izanagi returns to the earth, he rolls a boulder into the pass, making it impossible for anyone who has gone to Yomi to return. This story can be taken as a myth of the origin of death.