一切經音義 36.252

36.252

轉樞（衝珠反門肘也郭注爾雅云門戶扉樞也韓康伯注周易云樞機制動之主也古今正字從木區聲扉音非古今字）。

轉樞 (shū [fanqie: 衝珠反]; the pivot of a door. Guo's commentary on the Erya says: 'The pivot is the hinge of a door leaf.' Han Kangbo's commentary on the Book of Changes says: 'The pivot-mechanism is the primary controller of movement.' The Gujin zhengzi states it is formed from 木 with 區 as phonetic. The character 扉 is pronounced fēi; both are standard characters past and present).