4.2.45 चरणेभ्यो धर्मवत्

In the same context as the previous stura चरण प्रातिपादिक have धर्मवत् suffixes. धर्मवत् really means that गोत्रचरणाद् वुञ् etc. would be applicable. For example, कठानां समूहः काठकम्.