The Genitive 6th-Case-affix is retained when the compound expresses an 'affront or insult'.,
Thus चौरस्यकुलम्, वृषलस्यकुलम् ॥ Why do we say when insult is meant ? Observe ब्राह्मणकुलम् ॥
Vart:- The Genitive is not elided after वाक् when followed by युक्ति, after दिश् before दण्ड, and after पश्यत् before हर ॥ As, वाचोयुक्तिः , दिशोदण्डः, पश्यतोहरः ॥
Vart:- The Genitive affix is not elided in the following words आमुष्यायणः, आमुष्यपुत्रिका and आमुष्यकुलिका ॥ अमुष्य is the Genitive Singular of the Pronoun अदस्, and is enumerated in the नडादि class 4.1.99 and takes फक् in forming the Patronymic, अमुष्यापत्यम् = अमुष्यायणः, अमुष्यपुत्रस्य भावः = आमुष्यपुत्रिका formed by वुञ् (V. I. 133) ॥ So also आमुष्यकुलिका ॥
Vart:- The Genitive affix is not elided in the compound देवानांप्रियः ॥ The author of Siddhanta Kaumudi says \when the sense is that of a fool, the affix is not elided in devanam-priya\ There is no authority for this, either in the Mahabhashya or the Kasika. This was the title of the famous Buddhist monarch Asoka, who would not have adopted it, had it meant 'a fool'. The phrase इति च मूर्खे has been added by Bhattoji Dikshit through Brahmanical spite.
Vart:- The Genitive affix is not elided after श्वन् when शेप, पुच्छ and लांगुल follow it :- शुन शेपः, शुनः पुच्छः, शुनोलांगुलः ॥
Vart:- The Genitive affix is not elided after दिव् when दास follows: as दिवोदासः ॥,