Declension table of ?anantvas

Neuter	Singular	Dual	Plural
Nominative	anantvat	anantuṣī	anantvāṃsi
Vocative	anantvat	anantuṣī	anantvāṃsi
Accusative	anantvat	anantuṣī	anantvāṃsi
Instrumental	anantuṣā	anantvadbhyām	anantvadbhiḥ
Dative	anantuṣe	anantvadbhyām	anantvadbhyaḥ
Ablative	anantuṣaḥ	anantvadbhyām	anantvadbhyaḥ
Genitive	anantuṣaḥ	anantuṣoḥ	anantuṣām
Locative	anantuṣi	anantuṣoḥ	anantvatsu

Compound anantvat -

Adverb -anantvat