The name "I-do" was modeled after "Myogyo-do" (the study of Confucian classics) and others, and the name took root among the public around the Jogan era (A.D. 859 - A.D. 877).
貞観(日本)年間頃より大学寮の明経道などに倣って「医道」という呼称が定着するようになった。