Declension table of ?uṣasya

Masculine	Singular	Dual	Plural
Nominative	uṣasyaḥ	uṣasyau	uṣasyāḥ
Vocative	uṣasya	uṣasyau	uṣasyāḥ
Accusative	uṣasyam	uṣasyau	uṣasyān
Instrumental	uṣasyena	uṣasyābhyām	uṣasyaiḥ uṣasyebhiḥ
Dative	uṣasyāya	uṣasyābhyām	uṣasyebhyaḥ
Ablative	uṣasyāt	uṣasyābhyām	uṣasyebhyaḥ
Genitive	uṣasyasya	uṣasyayoḥ	uṣasyānām
Locative	uṣasye	uṣasyayoḥ	uṣasyeṣu

Compound uṣasya -

Adverb -uṣasyam -uṣasyāt