What is the word on Wonder woman’s shield?

Wonder Woman’s Shield says that the quote OP gives is on the shield. However, The Badass Quote That’s Engraved On Wonder Woman’s Sword says that it is on her sword:

In the “Batman v Superman: Dawn of Justice: Tech Manual” (via Digital Spy), it’s revealed that director Zack Snyder wanted inscriptions on the sword and shield. After coming up with a “hybrid extinct language,” the team inscribed the sword with a quote from Joseph Campbell’s collection “Goddess: Mystery of the Feminine Divine.” Here’s the quote translated into English:

“Life is killing all the time and so the goddess kills herself in the sacrifice of her own animal.”

What is Written on Wonder Woman’s Shield in BATMAN V SUPERMAN? | Nerdist links to a transliteration of the inscription on the sword (it says shield, but the closeup of the sword has the same text), done by Vince Tomasso: The “Greek” on Wonder Woman’s Equipment in ‘Batman v. Superman: Dawn of Justice’

The Greek makes no sense, and it has random digammas and a letter that Tomasso did not recognise, and that I’m proud that I did: Sampi (in its arrow variant). It looks like they made up the language for the quote, and I would not be surprised if they just made up a bunch of random letters, rather than a fully-fledged language. But Greek it isn’t. The archaic letters do indicate this is supposed to be some sort of fictional pre-Greek…