Possibly means “life” or “servant” in Hebrew (or a related Semitic language). This was the name of a 9th-century BC military commander who became king of Israel. He appears in the Old Testament, where he is denounced as being wicked.
Derived from Greek ἀμαρύσσω (amarysso) meaning “to sparkle”. This was the name of a heroine in Virgil’s epic poem Eclogues [1]. The amaryllis flower is named for her.