Ekeldi
From Mizahar Lore
The Syliran Knights have a unique sign language taught to every member once they complete their quest for Knighthood. This language, called Ekeldi, is loosely based on the same sign used by the Drykas, but has evolved over the last 250 years into its own distinct language. It is used more frequently by those assigned to Wing squads outside the walls, and by those who hold a Sergeant rank or higher.