Where does “口裂け女” come from?

口裂け女 (Japanese) comes from Japanese 口, from Japanese くち, from Japanese 朽ちる.

口裂け女 (Japanese): a yokai resembling a woman with a mouth that is slit from ear to ear

Definitions

  1. a yokai resembling a woman with a mouth that is slit from ear to ear

Ancestry of “口裂け女”, step by step

口裂け女 traces back through two separate lines of ancestry.

via Japanese 口

StepLanguageWordMeaning
1Japanese口mouth; opening; the mouth
2Japaneseくちmouth
3Japanese朽ちる—

via Japanese 女

StepLanguageWordMeaning
1Japanese女a woman; a wife; a mistress, concubine
2Middle Chinese女—
Every word from Japanese 朽ちる →Every word from Japanese くち →Every word from Japanese 口 →