Where does “Alexópulos” come from?

Alexópulos (Spanish) comes from Greek Αλεξόπουλος, from Greek -όπουλος, from Greek -ποῦλος, from Latin pullus, from Proto-Indo-European polHwós, from Proto-Indo-European pelH- — pale, gray.

Ancestry of “Alexópulos”, step by step

Step	Language	Word	Meaning
1	Greek	Αλεξόπουλος	—
2	Greek	-όπουλος	Παύλος + API → Παυλόπουλος; παπάς + API →...
3	Greek	-ποῦλος	kinship (of a son daughter to a father)
4	Latin	pullus	A young animal; darling; dark-colored; dusky
5	Proto-Indo-European	polHwós	pale, gray
6	Proto-Indo-European	pelH-	pale, gray

Every word from Proto-Indo-European pelH- →Every word from Proto-Indo-European polHwós →Every word from Latin pullus →