Where does “cenușoară” come from?

cenușoară (Romanian) comes from Romanian cenușă, from Vulgar Latin cinusia, from Latin cinus, from Latin cinis, from Proto-Indo-European ḱen- — to set oneself in motion, arise.

Ancestry of “cenușoară”, step by step

Step	Language	Word	Meaning
1	Romanian	cenușă	ash; cinder
2	Vulgar Latin	cinusia	ash
3	Latin	cinus	—
4	Latin	cinis	cold ashes; ruins of a burned city
5	Proto-Indo-European	ḱen-	to set oneself in motion, arise

Every word from Proto-Indo-European ḱen- →Every word from Latin cinis →Every word from Latin cinus →