Declension table of ?kaśya

Masculine	Singular	Dual	Plural
Nominative	kaśyaḥ	kaśyau	kaśyāḥ
Vocative	kaśya	kaśyau	kaśyāḥ
Accusative	kaśyam	kaśyau	kaśyān
Instrumental	kaśyena	kaśyābhyām	kaśyaiḥ kaśyebhiḥ
Dative	kaśyāya	kaśyābhyām	kaśyebhyaḥ
Ablative	kaśyāt	kaśyābhyām	kaśyebhyaḥ
Genitive	kaśyasya	kaśyayoḥ	kaśyānām
Locative	kaśye	kaśyayoḥ	kaśyeṣu

Compound kaśya -

Adverb -kaśyam -kaśyāt