Declension table of ?tāntava

Masculine	Singular	Dual	Plural
Nominative	tāntavaḥ	tāntavau	tāntavāḥ
Vocative	tāntava	tāntavau	tāntavāḥ
Accusative	tāntavam	tāntavau	tāntavān
Instrumental	tāntavena	tāntavābhyām	tāntavaiḥ tāntavebhiḥ
Dative	tāntavāya	tāntavābhyām	tāntavebhyaḥ
Ablative	tāntavāt	tāntavābhyām	tāntavebhyaḥ
Genitive	tāntavasya	tāntavayoḥ	tāntavānām
Locative	tāntave	tāntavayoḥ	tāntaveṣu

Compound tāntava -

Adverb -tāntavam -tāntavāt