Declension table of ?hastya

Neuter	Singular	Dual	Plural
Nominative	hastyam	hastye	hastyāni
Vocative	hastya	hastye	hastyāni
Accusative	hastyam	hastye	hastyāni
Instrumental	hastyena	hastyābhyām	hastyaiḥ
Dative	hastyāya	hastyābhyām	hastyebhyaḥ
Ablative	hastyāt	hastyābhyām	hastyebhyaḥ
Genitive	hastyasya	hastyayoḥ	hastyānām
Locative	hastye	hastyayoḥ	hastyeṣu

Compound hastya -

Adverb -hastyam -hastyāt