遺告ゆいごうMeanings1nounwill; testamentrare termRare, formal term for a last will or testament. In modern Japanese, 遺言 (ゆいごん) is overwhelmingly more common.古こ文ぶん書しょには、故こ人じんの遺告ゆいごうが記しるされていた。The ancient document recorded the deceased's will.