jotaka

adjective illuminating, making light; explaining Ja.ii.420; Dpvs.xiv.50; Mil.343 (= lamp-lighter)
■ f. -ikā explanation, commentary, Name of several Commentaries, e.g. the Paramatthajotikā on the Sutta Nipāta (Kp-a.11); cp. the similar expression dīpanī (Paramatthadīpanī on Th 2; Vv & Pv.).; Jotika Np. Dhp-a.i.385 (Jotiya); Vism.233, Vism.382.

from juti