The affix aṇ comes after the words 1. vikarṇa 2. śuṅga and 3. chagala when the sense is a descendant of the family of vatsa , bhāradvāja and atri , respectively.,
Thus वैकर्णः = वात्सः otherwise वैकर्णिः ॥ शौङ्गः = भारद्वाजः, otherwise शौङ्गिः ॥ छागलः = आत्रेयः, otherwise छागलिः ॥
In some texts the word शुंगा is used and not शुंग ॥ The former being a feminine word, its Patronymic will be शौङ्गेयः, by (IV. I. 120) when it does not mean a descendant of भरद्वाजः ॥,