After the word vṛddha , the affix cha is added in the remaining senses.,
The word गोत्र does not govern this sutra. This is a general rule. The Vriddha is defined in (l. 1. 73) &c. This debars अण् ॥ Thus from गार्ग्य we have गार्गीय 6.4.148 & 6.4.152. So also वात्सीयः, शालीयः, मालीयः, ॥
This rule being a subsequent one, debars the following preceding rules, in case of conflict of rules 1.4.2 I. The rule relating to Indeclinables (104), 2. The rule relating to words ending in तीर and रूप्य (106) 3. The rule relating to Villages of North-folk (109), 4. The rule relating to penultimate क (110). Thus.
इह-इहत्य; but आरात्-आरातीयः करवतीर-कारवतीरम्; but वायसतीर-वायसतीरीयः चणाररूप्य-चाणाररूप्यम्; but माणिरूप्य-माणिरूप्यकः 4.2.21 शिवपुर-शैवपुरम्; but वाडवकर्ष-वाडवकर्षीय; निलीनक-नैलीनकः; but औलूक-औलूकीयः ॥,