一切經音義 65.125

65.125

筑笛（知六反筑形如箏刻其頸而握之頸築之故謂之筑字從巩者握持之也巩音拱共手為拱字也）。

Zhu-zither and flute (zhudi 筑笛; pronounced [zhi + liu] /zhù/: The zhu is shaped like a zheng; its neck is notched and grasped by the hand, and because its neck is struck (zhu 築), it is called a zhu. The character is written with gong (巩), meaning grasped in hand; gong is pronounced gong (拱), folding the hands together forms the character gong).