册府元龟 cèfǔyuánguī Cefu Yuangui Origin Definitions Defs Strokes Stroke Words Sentences Sents 册府 冊府 cèfǔ imperial library (literary) an emperor's library or a library located within the palace. Also written as 策府 cèfǔ.元 yuán noun first (bound form) first; primary; original; such as in 元旦 yuándàn龟 龜 guī noun tortoise tortoise; turtle; shell of a tortoise used for divination in ancient times