Declension table of ?uṣasya

Neuter	Singular	Dual	Plural
Nominative	uṣasyam	uṣasye	uṣasyāni
Vocative	uṣasya	uṣasye	uṣasyāni
Accusative	uṣasyam	uṣasye	uṣasyāni
Instrumental	uṣasyena	uṣasyābhyām	uṣasyaiḥ
Dative	uṣasyāya	uṣasyābhyām	uṣasyebhyaḥ
Ablative	uṣasyāt	uṣasyābhyām	uṣasyebhyaḥ
Genitive	uṣasyasya	uṣasyayoḥ	uṣasyānām
Locative	uṣasye	uṣasyayoḥ	uṣasyeṣu

Compound uṣasya -

Adverb -uṣasyam -uṣasyāt