Where does “talong” come from?

talong (Bikol Central) comes from Malay terung, from Proto-Mon-Khmer *d₁rɗuŋ.

Ancestry of “talong”, step by step

Step	Language	Word	Meaning
1	Malay	terung	aubergine, brinjal, eggplant; plant belonging to the family Solanaceae and genus Solanum that produces edible fruits
2	Proto-Mon-Khmer	*d₁rɗuŋ	—