Where does “sículo” come from?

sículo (Spanish) comes from Latin siculus, from Ancient Greek Σίκελος, from Ancient Greek Σικελία, from Ancient Greek -ῐ́ᾱ, from Proto-Indo-European -íh₂, from Proto-Indo-European -h₂ — Creates collective nouns, which refer to groups...

sículo (Spanish): Sicilian

Definitions

Sicilian

Ancestry of “sículo”, step by step

Step	Language	Word	Meaning
1	Latin	siculus	Sicilian
2	Ancient Greek	Σίκελος	Sicel; {{w\|Sicels}}
3	Ancient Greek	Σικελία	—
4	Ancient Greek	-ῐ́ᾱ	{{l\|en\|-ia}}; "suffix forming abstract feminine...
5	Proto-Indo-European	-íh₂	—
6	Proto-Indo-European	-h₂	Creates collective nouns, which refer to groups...

Every word from Proto-Indo-European -h₂ →Every word from Ancient Greek -ῐ́ᾱ →Every word from Ancient Greek Σικελία →