Declension table of ?niravyaya

Neuter	Singular	Dual	Plural
Nominative	niravyayam	niravyaye	niravyayāṇi
Vocative	niravyaya	niravyaye	niravyayāṇi
Accusative	niravyayam	niravyaye	niravyayāṇi
Instrumental	niravyayeṇa	niravyayābhyām	niravyayaiḥ
Dative	niravyayāya	niravyayābhyām	niravyayebhyaḥ
Ablative	niravyayāt	niravyayābhyām	niravyayebhyaḥ
Genitive	niravyayasya	niravyayayoḥ	niravyayāṇām
Locative	niravyaye	niravyayayoḥ	niravyayeṣu

Compound niravyaya -

Adverb -niravyayam -niravyayāt