神代文字

Etymology 1
Compound of.

Attested since at least 1895.

Noun

 * 1)  any of various writing systems claimed to predate Japan's adoption of Chinese characters and perpetuated by feudal scholars, but widely discredited by modern scholars

Etymology 2
Likely a shift from jindai moji, adopting the kun'yomi of kamiyo for the first portion.

Also analyzable as a compound of.

Date of first appearance is unclear. This reading is unusual, and usage might be regional; it is not included in many references.

Noun

 * 1)   any of various writing systems claimed to predate Japan's adoption of Chinese characters and perpetuated by feudal scholars, but widely discredited by modern scholars