Where does “Արարատ” come from?

Արարատ (Old Armenian) comes from Ancient Greek Ἀραράτ, from Hebrew אֲרָרָט.

Ancestry of “Արարատ”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Ἀραράτ	—
2	Hebrew	אֲרָרָט	—

Արարատ — Etymology, Origin & Word History | Etymology Explorer