Declension table of ?suptatva

Neuter	Singular	Dual	Plural
Nominative	suptatvam	suptatve	suptatvāni
Vocative	suptatva	suptatve	suptatvāni
Accusative	suptatvam	suptatve	suptatvāni
Instrumental	suptatvena	suptatvābhyām	suptatvaiḥ
Dative	suptatvāya	suptatvābhyām	suptatvebhyaḥ
Ablative	suptatvāt	suptatvābhyām	suptatvebhyaḥ
Genitive	suptatvasya	suptatvayoḥ	suptatvānām
Locative	suptatve	suptatvayoḥ	suptatveṣu

Compound suptatva -

Adverb -suptatvam -suptatvāt