Where does “tetracarbonilo” come from?

tetracarbonilo (Portuguese) comes from Portuguese tetra-, from Ancient Greek τέτταρες, from Proto-Indo-European kʷetwóres, from Proto-Indo-European kʷe- — and.

tetracarbonilo (Portuguese): tetracarbonyl

Definitions

tetracarbonyl

Ancestry of “tetracarbonilo”, step by step

Step	Language	Word	Meaning
1	Portuguese	tetra-	tetra
2	Ancient Greek	τέτταρες	four
3	Proto-Indo-European	kʷetwóres	four
4	Proto-Indo-European	kʷe-	and

Every word from Proto-Indo-European kʷe- →Every word from Proto-Indo-European kʷetwóres →Every word from Portuguese tetra- →