由来已久 yóuláiyǐjiǔ of long standing Origin Definitions Defs Strokes Stroke Words Sentences Sents 由来 由來 yóulái since the beginning Used to describe a situation or state that has existed from the start up until the present; historically; traditionally已久 yǐjiǔ adverbadjective for a long time already for a long time already; already a long time