Declension table of ?anvasta

Neuter	Singular	Dual	Plural
Nominative	anvastam	anvaste	anvastāni
Vocative	anvasta	anvaste	anvastāni
Accusative	anvastam	anvaste	anvastāni
Instrumental	anvastena	anvastābhyām	anvastaiḥ
Dative	anvastāya	anvastābhyām	anvastebhyaḥ
Ablative	anvastāt	anvastābhyām	anvastebhyaḥ
Genitive	anvastasya	anvastayoḥ	anvastānām
Locative	anvaste	anvastayoḥ	anvasteṣu

Compound anvasta -

Adverb -anvastam -anvastāt