A verb in The Etymologies of the 1930s for “kindle” derived from the root ᴹ√NARTA of the same meaning (EtyAC/NARTA). This root is probably just a causative verb formation from ᴹ√NAR “flame, fire”, more literally “✱make fire”. Hence I think this verb can be used in the general sense of “✱ignite, inflame, set fire to”, etc.
verb. to (cause to) shine, light up, kindle (lamp etc.)
- ᴹ√KAL “shine” ✧ Ety/KAL
Development Stages Sources ᴹ√KAL > kalta- [kalta-] ✧ Ety/KAL
- kaltā́ ✧ PE22/114