Where does “Alex” come from?

Alex (Dutch) comes from Dutch Alexander, from Ancient Greek Ἀλέξανδρος, from Ancient Greek ἀλέξω, from Ancient Greek ἀνδρός, from Ancient Greek ἀνήρ, from Proto-Hellenic *anḗr — man.

Ancestry of “Alex”, step by step

Step	Language	Word	Meaning
1	Dutch	Alexander	—
2	Ancient Greek	Ἀλέξανδρος	Alexander
3	Ancient Greek	ἀλέξω	to keep off, turn aside; to guard, protect,...
4	Ancient Greek	ἀνδρός	genitive singular of ἀνήρ; man; of man
5	Ancient Greek	ἀνήρ	man; husband; human being, as opposed to a god
6	Proto-Hellenic	*anḗr	man

Every word from Proto-Hellenic *anḗr →Every word from Ancient Greek ἀνήρ →Every word from Ancient Greek ἀνδρός →