dīpasikhā : [f.] flame of a lamp.

A.P. Buddhadatta Mahathera, Concise Pali-English and English-Pali Dictionary [available as digital version from Metta Net, Sri Lanka]

○sikhā f. the flame of a lamp-foe Kathās. xviii, 77
• the point of a shining body, Lil. 95
• lamp-black, soot L.
• ○khôpaniṣad f. N. of an Up.

Sanskrit-English Dictionary, by M. Monier William