本端(běn duān) “beginning, root”
not found at HD. 4.718; not found at DK. 6.32;
86a5.譬如人生盲 不見日月光 五色及十方 謂天下無此 良醫探本端 見四病陰蓋 慈哀憐愍之 入山爲求藥(v)
K. 139.5.-; not found at L. 20b24; not found at Ten. 154b28;