As to the origin of all the forms in the above list, it clearly cannot belong to English philology to do much more than indicate the source from which we received them. Their derival into French from Latin has therefore been only slightly touched upon.
Source: wiktionary
3.4 Derival morphology
[…] However, in the Turfan dialect as well in the speech of some of the younger generation in Urumchi, -ŋza seems to function as a nominal derivative suffix, deriving nouns from some kin terms and adding a clear, haughty, arrogant hue, see the lexicon.
Source: wiktionary