永えい仁にんえいにんMeanings1nounEinin era (1293.8.5-1299.4.25)Japanese era name (年号) from the Kamakura period. Used in historical contexts.永えい仁にんの頃ころ、鎌かま倉くら幕ばく府ふは元げん寇こう後ごの対たい応おうに追おわれていた。Around the Einin era, the Kamakura shogunate was busy dealing with the aftermath of the Mongol invasions.