Where does “Il·líria” come from?

Il·líria (Catalan) comes from Latin Illyria, from Ancient Greek Ἰλλυρία, from Illyrian *Hullurio, from Proto-Indo-European udrós, from Proto-Indo-European wed-, from Proto-Indo-European wey- — to wither; fade; to move, go ahead; to be strong;...

Ancestry of “Il·líria”, step by step

Step	Language	Word	Meaning
1	Latin	Illyria	—
2	Ancient Greek	Ἰλλυρία	—
3	Illyrian	*Hullurio	—
4	Proto-Indo-European	udrós	of water, aquatic
5	Proto-Indo-European	wed-	water
6	Proto-Indo-European	wey-	to wither; fade; to move, go ahead; to be strong;...

Every word from Proto-Indo-European wey- →Every word from Proto-Indo-European wed- →Every word from Proto-Indo-European udrós →