Declension table of ?sahasiddhatva

Neuter	Singular	Dual	Plural
Nominative	sahasiddhatvam	sahasiddhatve	sahasiddhatvāni
Vocative	sahasiddhatva	sahasiddhatve	sahasiddhatvāni
Accusative	sahasiddhatvam	sahasiddhatve	sahasiddhatvāni
Instrumental	sahasiddhatvena	sahasiddhatvābhyām	sahasiddhatvaiḥ
Dative	sahasiddhatvāya	sahasiddhatvābhyām	sahasiddhatvebhyaḥ
Ablative	sahasiddhatvāt	sahasiddhatvābhyām	sahasiddhatvebhyaḥ
Genitive	sahasiddhatvasya	sahasiddhatvayoḥ	sahasiddhatvānām
Locative	sahasiddhatve	sahasiddhatvayoḥ	sahasiddhatveṣu

Compound sahasiddhatva -

Adverb -sahasiddhatvam -sahasiddhatvāt