Declension table of ?anantatva

Neuter	Singular	Dual	Plural
Nominative	anantatvam	anantatve	anantatvāni
Vocative	anantatva	anantatve	anantatvāni
Accusative	anantatvam	anantatve	anantatvāni
Instrumental	anantatvena	anantatvābhyām	anantatvaiḥ
Dative	anantatvāya	anantatvābhyām	anantatvebhyaḥ
Ablative	anantatvāt	anantatvābhyām	anantatvebhyaḥ
Genitive	anantatvasya	anantatvayoḥ	anantatvānām
Locative	anantatve	anantatvayoḥ	anantatveṣu

Compound anantatva -

Adverb -anantatvam -anantatvāt