Where does “alexandri” come from?

alexandri (Translingual) comes from Latin alexandrinus, from Ancient Greek Ἀλεξανδρῖνος, from Ancient Greek Ἀλέξανδρος, from Ancient Greek ἀλέξω, from Ancient Greek ἀνδρός, from Ancient Greek ἀνήρ, from Proto-Hellenic *anḗr — man.

alexandri (Translingual): Alexander or Alexandr (attributive); used in taxonomic names for organisms that often have English names of the form "Alexander's..." or "Alexandr's..."

Definitions

Alexander or Alexandr (attributive); used in taxonomic names for organisms that often have English names of the form "Alexander's..." or "Alexandr's..."

Ancestry of “alexandri”, step by step

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

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