Declension table of ?tāntava

Neuter	Singular	Dual	Plural
Nominative	tāntavam	tāntave	tāntavāni
Vocative	tāntava	tāntave	tāntavāni
Accusative	tāntavam	tāntave	tāntavāni
Instrumental	tāntavena	tāntavābhyām	tāntavaiḥ
Dative	tāntavāya	tāntavābhyām	tāntavebhyaḥ
Ablative	tāntavāt	tāntavābhyām	tāntavebhyaḥ
Genitive	tāntavasya	tāntavayoḥ	tāntavānām
Locative	tāntave	tāntavayoḥ	tāntaveṣu

Compound tāntava -

Adverb -tāntavam -tāntavāt