Declension table of ?sthūṇya

Neuter	Singular	Dual	Plural
Nominative	sthūṇyam	sthūṇye	sthūṇyāni
Vocative	sthūṇya	sthūṇye	sthūṇyāni
Accusative	sthūṇyam	sthūṇye	sthūṇyāni
Instrumental	sthūṇyena	sthūṇyābhyām	sthūṇyaiḥ
Dative	sthūṇyāya	sthūṇyābhyām	sthūṇyebhyaḥ
Ablative	sthūṇyāt	sthūṇyābhyām	sthūṇyebhyaḥ
Genitive	sthūṇyasya	sthūṇyayoḥ	sthūṇyānām
Locative	sthūṇye	sthūṇyayoḥ	sthūṇyeṣu

Compound sthūṇya -

Adverb -sthūṇyam -sthūṇyāt