Declension table of ?anavasāna

Masculine	Singular	Dual	Plural
Nominative	anavasānaḥ	anavasānau	anavasānāḥ
Vocative	anavasāna	anavasānau	anavasānāḥ
Accusative	anavasānam	anavasānau	anavasānān
Instrumental	anavasānena	anavasānābhyām	anavasānaiḥ anavasānebhiḥ
Dative	anavasānāya	anavasānābhyām	anavasānebhyaḥ
Ablative	anavasānāt	anavasānābhyām	anavasānebhyaḥ
Genitive	anavasānasya	anavasānayoḥ	anavasānānām
Locative	anavasāne	anavasānayoḥ	anavasāneṣu

Compound anavasāna -

Adverb -anavasānam -anavasānāt