The affix ṇini comes after a verb diversely when continued repitition of an action is to be expressed.,
The word आभीक्ष्ण्य means continued repetition, that is to say, zealous practice or assiduous performance of anything, but does not mean habit. As कषायपायिणो गान्धाराः 'the people of Gandhara are kashaya-drinkers'. कषाय + पा + णिनि = कषाय + पा + युक् + णिनि 7.3.33. So also क्षीरपायिण उशीनाराः 'the people of Usinara are milk-drinkers'. सौवीर-पायिणो बाह्लीकाः 'the people of Bahlika are sauvira-drinkers'.
By using the word 'diversely' in the sutra, this affix is not applied in other places, as in the following :- कुल्माषखादः 'a grain eater'.,