The word caṭakā takes the affix airak in forming the Patronymic.,
Thus चाटकैरः 'son of Chataka'.
Vart:- So also after the masculine word चटक ॥ Thus चाटकैरः 'son of Chataka'.
Vart:- In forming a descendant denoting a female, there is luk-elision of the affix. Thus the female descendant of चटका will be चटका, the टाप् being added as belonging to Ajadi class 4.1.4.,