ह्रस्वस्य पिति कृति तुक्

Thus अग्नि + चि + क्विप् = अग्निचित्, so also सोमसुत् ॥ Similarly प्रकृत्य and प्रहृत्य and उपस्तुत्य formed by the affix ल्यप् ॥ Why do we say \ending in a short vowel\? Observe आलूय, ग्रामणीः ॥ Why do we say \having an indicatory प\? Observe कूतम्, हृतम् ॥ Why do we say \a krit affix\? Observe पटुतरः, पटुतमः, with the Taddhita-affixes तरप् and तमप् ॥ In the compound ग्रामणिकुलम्, though the root is made short, yet there is no augment तुक्, in as much as the rule by which the root has been shortened is a Bahiranga rule, and the present rule is an Antaranga one. The maxim is असिद्धं बहिरङ्गमन्तरङ्गे ॥ \That which is Bahiranga is regarded as not having taken effect, or as not existing, when that which is Antaranga is to take effect\.,