Question about Horns / Antlers

[Cleretic]

Another mystery is that they supposedly have their own language (though this may be attributed to the elementals) and their own myths and culture. Not sure how much of that may be abandoned lore from older versions of the game.

Specifically, their language (seen both in their own names and the names of Toto-Rak and Tam-Tara) is based on the Ainu, an indigenous people of Japan. In-universe the language might have been appropriated from the Duskwight of Gelmorra, but I don't recall where exactly that notion came from. They also started happening after the people that would become the original Gridanian settlers made a pact with the Elementals; it wasn't that the Elementals went 'okay, those guys that're already around, those are our guys'.

White Mage gives you a bulk of the Padjali's story, but once you get to it, Endwalker's tank role quest chips in some helpful info, too.