Declension table of ?kasīya

Neuter	Singular	Dual	Plural
Nominative	kasīyam	kasīye	kasīyāni
Vocative	kasīya	kasīye	kasīyāni
Accusative	kasīyam	kasīye	kasīyāni
Instrumental	kasīyena	kasīyābhyām	kasīyaiḥ
Dative	kasīyāya	kasīyābhyām	kasīyebhyaḥ
Ablative	kasīyāt	kasīyābhyām	kasīyebhyaḥ
Genitive	kasīyasya	kasīyayoḥ	kasīyānām
Locative	kasīye	kasīyayoḥ	kasīyeṣu

Compound kasīya -

Adverb -kasīyam -kasīyāt