It would seem to have three stocks, in the Udinese, in the Neapolitan and in the Cosenza area, it should derive from a modification of the name Agata, which changed first into Aghjta and then into Ajta and Aita. additions provided by Giovanni Vezzelli It is a typically Tuscan variant from the "Aiuti" line, which comes from the noun "help" (and from the older "aita"). The surname was most probably formed by a nickname given to particularly generous people.
You may be interested
Verba Volant, Scripta Manent