Declension table of ?sthūma

Masculine	Singular	Dual	Plural
Nominative	sthūmaḥ	sthūmau	sthūmāḥ
Vocative	sthūma	sthūmau	sthūmāḥ
Accusative	sthūmam	sthūmau	sthūmān
Instrumental	sthūmena	sthūmābhyām	sthūmaiḥ sthūmebhiḥ
Dative	sthūmāya	sthūmābhyām	sthūmebhyaḥ
Ablative	sthūmāt	sthūmābhyām	sthūmebhyaḥ
Genitive	sthūmasya	sthūmayoḥ	sthūmānām
Locative	sthūme	sthūmayoḥ	sthūmeṣu

Compound sthūma -

Adverb -sthūmam -sthūmāt