The Tocharian B word pälk-
Word pälk-
p ə l k
IPA pəlk
Meaning burn

Comments
Douglas Q. Adams, “Etymological Dictionary of Tocharian B”, 1999, Brill

Other words that might be of interest
kauṃ ‘sun’, pūwar ‘fire’, taur ‘ash, dust’, läkutsetstse ‘bright’, pälśalñe ‘burning’, wärs-2 ‘darken’, sleme ‘flame’, tsāk ‘illuminate’, parkāsaṃ ‘illumination’, korośāna ‘bright yellow’, yäp- ‘sunset’, skiyo ‘shade, shadow’, pälk ‘shine’