Declension table of ?susthatva

Neuter	Singular	Dual	Plural
Nominative	susthatvam	susthatve	susthatvāni
Vocative	susthatva	susthatve	susthatvāni
Accusative	susthatvam	susthatve	susthatvāni
Instrumental	susthatvena	susthatvābhyām	susthatvaiḥ
Dative	susthatvāya	susthatvābhyām	susthatvebhyaḥ
Ablative	susthatvāt	susthatvābhyām	susthatvebhyaḥ
Genitive	susthatvasya	susthatvayoḥ	susthatvānām
Locative	susthatve	susthatvayoḥ	susthatveṣu

Compound susthatva -

Adverb -susthatvam -susthatvāt