Declension table of ?atiśastra

Neuter	Singular	Dual	Plural
Nominative	atiśastram	atiśastre	atiśastrāṇi
Vocative	atiśastra	atiśastre	atiśastrāṇi
Accusative	atiśastram	atiśastre	atiśastrāṇi
Instrumental	atiśastreṇa	atiśastrābhyām	atiśastraiḥ
Dative	atiśastrāya	atiśastrābhyām	atiśastrebhyaḥ
Ablative	atiśastrāt	atiśastrābhyām	atiśastrebhyaḥ
Genitive	atiśastrasya	atiśastrayoḥ	atiśastrāṇām
Locative	atiśastre	atiśastrayoḥ	atiśastreṣu

Compound atiśastra -

Adverb -atiśastram -atiśastrāt