From Latin Aaron, from Ancient Greek Ἀαρών (Aarṓn), from Hebrew אַהֲרֹן (ʾAhărōn), of unknown meaning, possibly meaning “bearer of martyrs”, or perhaps also, or instead, related to the Ancient Egyptian ꜥḥꜣ rw (“warrior lion”), though it has been suggested to also mean “elevated”, “exalted” or “high mountain”. Doublet of Harun.