there were about 3 or 4 steps of progressive diminutisation between Joanna and Asia. Its quite fascinating :)
Joanna... Joasia... Asia - it only takes two ;)
4. Aśka !
so 5 +
just like Urszula, Urszulka, Ula, Ulcia, Ulka!
I'm curious if there are actual 'rules' for this or if its just made up...
rule #1 it must have an "a" at the end in order to make it feminine.