Where does “prună” come from?

prună (Romanian) comes from Vulgar Latin pruna, from Latin prūnum, from Ancient Greek προῦνον, from Ancient Greek προῦμνον — A plum fruit.

prună (Romanian): plum

Definitions

Step	Language	Word	Meaning
1	Vulgar Latin	pruna	A burning coal, live coal, glowing charcoal
2	Latin	prūnum	plum
3	Ancient Greek	προῦνον	—
4	Ancient Greek	προῦμνον	A plum fruit