一切經音義 36.4

36.4

底哩（二合字上丁以反下里字彈舌梵語也唐云三即三種三昧即佛部蓮華部金剛部故云底哩三昧）。

底哩 (a conjunct character; the upper [character] has the fanqie ding + yi [dǐ]; the lower character li [li] is rolled on the tongue; Sanskrit; in Tang language it means 'three', namely the three samayas, which are the Buddha Family, the Lotus Family, and the Vajra Family; hence it is called trisamaya).