The term Kengyo originally referred to the manager who administered office duties in temples or Shoen (private estates) during the Heian and Kamakura periods, but from the Muromachi period onwards, it was established as the highest title for blind officers.
元々は平安時代・鎌倉時代に置かれた寺院や荘園の事務の監督役職名であったが室町時代以降、盲官の最高位の名称として定着した。