Where does “ghiulea” come from?

ghiulea (Romanian) comes from Persian کله, from Albanian kala-, from Proto-Albanian kala, from Proto-Indo-European kʷelh₁- — to move; to turn, go round; turn, become.

ghiulea (Romanian): cannonball

Definitions

cannonball

Ancestry of “ghiulea”, step by step

Step	Language	Word	Meaning
1	Persian	کله	head
2	Albanian	kala-	upside down
3	Proto-Albanian	kala	—
4	Proto-Indo-European	kʷelh₁-	to move; to turn, go round; turn, become

Every word from Proto-Indo-European kʷelh₁- →Every word from Albanian kala- →Every word from Persian کله →