Strongly hoping that you will not continue in perpetuating a mistake with Aanca. Errare humanum est, perseverare diabolicum.
What mistake? Betza did not say that the piece was known by this name historically. Here is what he wrote:
Not described there is a piece which makes a one step Rook move and then continues outwards as a Bishop. For lack of a name, I'll call it the Aanca (13th century Spanish for "Gryphon").
Calling this a mistake is like calling it a mistake for me to name a piece in one of my games a Cavalier, because that is actually the French word for the Knight.
What mistake? Betza did not say that the piece was known by this name historically. Here is what he wrote:
Calling this a mistake is like calling it a mistake for me to name a piece in one of my games a Cavalier, because that is actually the French word for the Knight.