Arahitogami
Arahitogami is a Japanese word, meaning a god who is a human being.
This word appears first in Kojiki, but assumingly used before this book.
Most well-known usage of this word would be in Japan before 1945, until the end of the World War II. In those days Kokka-shinto, nationalisticalized Shintoism applied this word to the Emperor Hirohito and required to Japanese people to absolute obey and loyarity to the Emperor as a god. Later
Hirohito himself disclamed this conception and claimed his relation to the people didn't rely on such a mythological idea but a historically developped family-like reliance.
A theological concept of Arahitogami on Kojiki