"Amazon Arrow" was once a title granted to the Amazon's best archeresses. Pyrrah was the first Amazon Arrow. Chryseis was the second. Aella was the third. After slaying the Lord of Lycans, all three heroines were banished from the Amazon Isles.
Now there is technically no official Amazon Arrow at all, but Man's World has embraced Pyrrah, Chryseis and Aella as superheroines and together they are known as "The Amazon Arrows".