Declension table of ?mahāśivarātrinirṇaya

Masculine	Singular	Dual	Plural
Nominative	mahāśivarātrinirṇayaḥ	mahāśivarātrinirṇayau	mahāśivarātrinirṇayāḥ
Vocative	mahāśivarātrinirṇaya	mahāśivarātrinirṇayau	mahāśivarātrinirṇayāḥ
Accusative	mahāśivarātrinirṇayam	mahāśivarātrinirṇayau	mahāśivarātrinirṇayān
Instrumental	mahāśivarātrinirṇayena	mahāśivarātrinirṇayābhyām	mahāśivarātrinirṇayaiḥ mahāśivarātrinirṇayebhiḥ
Dative	mahāśivarātrinirṇayāya	mahāśivarātrinirṇayābhyām	mahāśivarātrinirṇayebhyaḥ
Ablative	mahāśivarātrinirṇayāt	mahāśivarātrinirṇayābhyām	mahāśivarātrinirṇayebhyaḥ
Genitive	mahāśivarātrinirṇayasya	mahāśivarātrinirṇayayoḥ	mahāśivarātrinirṇayānām
Locative	mahāśivarātrinirṇaye	mahāśivarātrinirṇayayoḥ	mahāśivarātrinirṇayeṣu

Compound mahāśivarātrinirṇaya -

Adverb -mahāśivarātrinirṇayam -mahāśivarātrinirṇayāt