Declension table of ?tatevvas

Masculine	Singular	Dual	Plural
Nominative	tatevvān	tatevvāṃsau	tatevvāṃsaḥ
Vocative	tatevvan	tatevvāṃsau	tatevvāṃsaḥ
Accusative	tatevvāṃsam	tatevvāṃsau	tatevuṣaḥ
Instrumental	tatevuṣā	tatevvadbhyām	tatevvadbhiḥ
Dative	tatevuṣe	tatevvadbhyām	tatevvadbhyaḥ
Ablative	tatevuṣaḥ	tatevvadbhyām	tatevvadbhyaḥ
Genitive	tatevuṣaḥ	tatevuṣoḥ	tatevuṣām
Locative	tatevuṣi	tatevuṣoḥ	tatevvatsu

Compound tatevvat -

Adverb -tatevvas