Word detectives needed: "Ananyzapata"

According to Etymonline, ananizapta is a magical word from the mid-15th century, which is around the end of the medieval period.

On Google Books I came across this passage:

For the falling sickness the charm was the following:

Ananizapta, ferit mortem dum læder querit,
Est mala mors capta dum dictus, Ananizapta;
Ananizapta Dei nunc miserere mei.

There are several other results where the word is used in a similar way.

Explanation and picture from Harder Gate in Ingolstadt

Dr. Karl thinks that the meaning of the whole formula is: Jesus Christ defeated death (the devil) by being baptized by John and by dying on the cross ("chiasmus").

Could it be a name?

A search on Google reveals two people whose names contain "Anany Zapata", and one whose name is listed as "Anany Zapata", however that may not be his entire name.