Declension table of ?nirvyathana

Neuter	Singular	Dual	Plural
Nominative	nirvyathanam	nirvyathane	nirvyathanāni
Vocative	nirvyathana	nirvyathane	nirvyathanāni
Accusative	nirvyathanam	nirvyathane	nirvyathanāni
Instrumental	nirvyathanena	nirvyathanābhyām	nirvyathanaiḥ
Dative	nirvyathanāya	nirvyathanābhyām	nirvyathanebhyaḥ
Ablative	nirvyathanāt	nirvyathanābhyām	nirvyathanebhyaḥ
Genitive	nirvyathanasya	nirvyathanayoḥ	nirvyathanānām
Locative	nirvyathane	nirvyathanayoḥ	nirvyathaneṣu

Compound nirvyathana -

Adverb -nirvyathanam -nirvyathanāt