Declension table of ?trivista

Neuter	Singular	Dual	Plural
Nominative	trivistam	triviste	trivistāni
Vocative	trivista	triviste	trivistāni
Accusative	trivistam	triviste	trivistāni
Instrumental	trivistena	trivistābhyām	trivistaiḥ
Dative	trivistāya	trivistābhyām	trivistebhyaḥ
Ablative	trivistāt	trivistābhyām	trivistebhyaḥ
Genitive	trivistasya	trivistayoḥ	trivistānām
Locative	triviste	trivistayoḥ	trivisteṣu

Compound trivista -

Adverb -trivistam -trivistāt