was a Japanese era name (年号, nengō, lit. year name) of the Northern Court during the Era of Northern and Southern Courts after Kōryaku and before Shitoku. This period spanned the years from February 1381 to February 1384.Nussbaum, Louis-Frédéric. (2005). "Shitoku" in Japan encyclopedia, p. 875; n.b., Nussbaum identifies Eitoku's end in March 1383 and Shitoku's beginning a year later in March 1384. The emperors in Kyoto were and The Southern Court rivals in Yo… (More on Eitoku)