The affix ṇvuc comes optionally after a root in the sense of succession, merit, debt or production.,
The word पर्याय means turn or order of succession; अर्ह means worthy of respect; ॠणं means debt owed to another; and उत्पत्ति means birth or production. This rule supersedes क्तिन् and other affixes. Thus: (1) भवतः शयिका 'your turn of sleeping'; भवतोऽग्रग्रासिका 'your turn of eating first'. (2) अर्हति भवानिक्षुभक्षिकाम् 'you deserve to have a meal of sugar and molasses'. (3) इक्षुभक्षिकां मे धारयसि 'thou owest me a meal of sugar and molasses'; ओदनभोजिकां 'a meal of rice'; पयः पायिकां 'a drink of milk'. (4) इक्षुभक्षिका मे उदपादि ।
The word 'optionally' is understood in this sutra also; as चिकीर्षोत्पद्यते ।
The forms given by ण्वुल् and ण्वुच् are the same, the difference is only in the accent. (VI. 1. 193,) and 6.1.163.,