Declension table of ?anavastha

Neuter	Singular	Dual	Plural
Nominative	anavastham	anavasthe	anavasthāni
Vocative	anavastha	anavasthe	anavasthāni
Accusative	anavastham	anavasthe	anavasthāni
Instrumental	anavasthena	anavasthābhyām	anavasthaiḥ
Dative	anavasthāya	anavasthābhyām	anavasthebhyaḥ
Ablative	anavasthāt	anavasthābhyām	anavasthebhyaḥ
Genitive	anavasthasya	anavasthayoḥ	anavasthānām
Locative	anavasthe	anavasthayoḥ	anavastheṣu

Compound anavastha -

Adverb -anavastham -anavasthāt