Declension table of ?avadhvasta

Neuter	Singular	Dual	Plural
Nominative	avadhvastam	avadhvaste	avadhvastāni
Vocative	avadhvasta	avadhvaste	avadhvastāni
Accusative	avadhvastam	avadhvaste	avadhvastāni
Instrumental	avadhvastena	avadhvastābhyām	avadhvastaiḥ
Dative	avadhvastāya	avadhvastābhyām	avadhvastebhyaḥ
Ablative	avadhvastāt	avadhvastābhyām	avadhvastebhyaḥ
Genitive	avadhvastasya	avadhvastayoḥ	avadhvastānām
Locative	avadhvaste	avadhvastayoḥ	avadhvasteṣu

Compound avadhvasta -

Adverb -avadhvastam -avadhvastāt