Declension table of ?nirārambha

Neuter	Singular	Dual	Plural
Nominative	nirārambham	nirārambhe	nirārambhāṇi
Vocative	nirārambha	nirārambhe	nirārambhāṇi
Accusative	nirārambham	nirārambhe	nirārambhāṇi
Instrumental	nirārambheṇa	nirārambhābhyām	nirārambhaiḥ
Dative	nirārambhāya	nirārambhābhyām	nirārambhebhyaḥ
Ablative	nirārambhāt	nirārambhābhyām	nirārambhebhyaḥ
Genitive	nirārambhasya	nirārambhayoḥ	nirārambhāṇām
Locative	nirārambhe	nirārambhayoḥ	nirārambheṣu

Compound nirārambha -

Adverb -nirārambham -nirārambhāt