Where does “Andreassian” come from?

Andreassian (French) comes from Armenian Անդրեասյան, from Armenian Անդրեաս, from Old Armenian Անդրէաս, from Ancient Greek Ἀνδρέας, from Ancient Greek ἀνήρ, from Proto-Hellenic *anḗr — man.

Ancestry of “Andreassian”, step by step

Step	Language	Word	Meaning
1	Armenian	Անդրեասյան	—
2	Armenian	Անդրեաս	Andrew, one of the Apostles
3	Old Armenian	Անդրէաս	Andrew
4	Ancient Greek	Ἀνδρέας	—
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 Ἀνδρέας →