The affix ṇya comes in the sense of descendant after prātipadika (Nominal Stem) ending in senā after the word lakṣaṇa and after words denoting artisans.,
The word कारि means 'handicrafts', such as weavers, barbers, potters &c. Thus करिषेण्यः हारिषेण्यः, लाक्षण्यः, तान्तुवाय्यः, कौम्भकार्यः, नापित्यः ॥,