Declension table of ?kauṣya

Masculine	Singular	Dual	Plural
Nominative	kauṣyaḥ	kauṣyau	kauṣyāḥ
Vocative	kauṣya	kauṣyau	kauṣyāḥ
Accusative	kauṣyam	kauṣyau	kauṣyān
Instrumental	kauṣyeṇa	kauṣyābhyām	kauṣyaiḥ kauṣyebhiḥ
Dative	kauṣyāya	kauṣyābhyām	kauṣyebhyaḥ
Ablative	kauṣyāt	kauṣyābhyām	kauṣyebhyaḥ
Genitive	kauṣyasya	kauṣyayoḥ	kauṣyāṇām
Locative	kauṣye	kauṣyayoḥ	kauṣyeṣu

Compound kauṣya -

Adverb -kauṣyam -kauṣyāt