Grammatical Sūtra: उदीचां वृद्धादगोत्रात्‌ udīcāṃ vṛddhādagotrāt‌
Individual Word Components: udīcām vṛddhāt agotrāt
Sūtra with anuvṛtti words: udīcām vṛddhāt agotrāt pratyayaḥ (3.1.1), paraḥ (3.1.2), ca (3.1.2), ādyudāttaḥ (3.1.3), ca (3.1.3), ṅyāpprātipadikāt (4.1.1), taddhitāḥ (4.1.76), samarthānām (4.1.82), prathamāt (4.1.82), vā (4.1.82), aṇ (4.1.83), strīpuṁsābhyām (4.1.87), nañsnañau (4.1.87), bhavanāt (4.1.87), tasya (4.1.92), phiñ (4.1.154)
Type of Rule: vidhi
Preceding adhikāra rule:4.1.83 (1prāg dīvyato 'ṇ)

Description:

According to the opinion of Northern Grammarians, after words with a Vriddhi in the first syllable, when it is not a Gotra-name, the affix 'phiñ' is employed in the sense of a descendant. Source: Aṣṭādhyāyī 2.0

According to Northern Grammarians [the taddhita 76 affix 3.1.1 phiÑ 154 is introduced after 3.1.2 a nominal stem 1] whose first syllable contains a vŕddhi vowel (1.1.73 vr̥ddhāt) and which is not a patronymic (á-gotrāt) [ending in 1.1.72 the sixth sUP triplet to denote a descendant 92]. Source: From Aṣṭādhyāyī of Pāṇini In Roman Transliteration translated by Sumitra M. Katre, Copyright © 1987. Courtesy of the University of Texas Press.

Source:Srisa Chandra Vasu's Aṣṭādhyāyī of Pāṇini

Anuvṛtti: 4.1.92, 4.1.154

Kāśikāvṛttī¹: vṛddhaṃ yacchabdarūpam agotraṃ, tasmādapatye phiñ pratyayo bhavati udīcām ācāryā   See More

Kāśikāvṛttī²: udīcāṃ vṛddhādagotrāt 4.1.157 vṛddhaṃ yacchabdarūpam agotraṃ, tasmādapatye phiñ   See More

Nyāsa²: udīcāṃ vṛddhādagotrāt. , 4.1.157 "vṛddhāt" iti. ihaiva yatpāribhāṣikaṃ   See More

Bālamanoramā¹: udīcāṃ vṛddhā. vṛddhasaṃjñakādagotrapratyayāntātphiñsyādudīcāṃ mate ityarthaḥ. Sū #1163   See More

Bālamanoramā²: udīcāṃ vṛddhādagotrāt 1163, 4.1.157 udīcāṃ vṛddhā. vṛddhasaṃjñakādagotrapratyayā   See More

1.Source: Arsha Vidya Gurukulam
2.Source: Sanskrit Documents