The word kapiṣṭhala is irregularly formed denoting the founder of a gotra (Patronymic) of that name.,
Thus the son of Kapishthala will be कापिष्ठलिः ॥ The word \ gotra\ here does not mean the grammatical \gotra,\ but the popular term ' gotra' denoting 'clans,' as described in the list of pravaras. Why do we say \when denoting the founder of a gotra\? Observe कपिस्थलम् The land of the monkeys.,