The affix ḍa comes after the verb jan 'to be produced', with a past signification, when an upasarga is in composition and when the sense is simply appellative.,
The term here being simply appellative, and not descriptive, cannot be explained by giving the signification of its component elements. As प्रजाः 'people', or 'a son'; as in the sentence अथेमा मानवी प्रजाः ।,