Declension table of ?karṇya

Masculine	Singular	Dual	Plural
Nominative	karṇyaḥ	karṇyau	karṇyāḥ
Vocative	karṇya	karṇyau	karṇyāḥ
Accusative	karṇyam	karṇyau	karṇyān
Instrumental	karṇyena	karṇyābhyām	karṇyaiḥ karṇyebhiḥ
Dative	karṇyāya	karṇyābhyām	karṇyebhyaḥ
Ablative	karṇyāt	karṇyābhyām	karṇyebhyaḥ
Genitive	karṇyasya	karṇyayoḥ	karṇyānām
Locative	karṇye	karṇyayoḥ	karṇyeṣu

Compound karṇya -

Adverb -karṇyam -karṇyāt