Declension table of ?mṛtyumṛtyutva

Neuter	Singular	Dual	Plural
Nominative	mṛtyumṛtyutvam	mṛtyumṛtyutve	mṛtyumṛtyutvāni
Vocative	mṛtyumṛtyutva	mṛtyumṛtyutve	mṛtyumṛtyutvāni
Accusative	mṛtyumṛtyutvam	mṛtyumṛtyutve	mṛtyumṛtyutvāni
Instrumental	mṛtyumṛtyutvena	mṛtyumṛtyutvābhyām	mṛtyumṛtyutvaiḥ
Dative	mṛtyumṛtyutvāya	mṛtyumṛtyutvābhyām	mṛtyumṛtyutvebhyaḥ
Ablative	mṛtyumṛtyutvāt	mṛtyumṛtyutvābhyām	mṛtyumṛtyutvebhyaḥ
Genitive	mṛtyumṛtyutvasya	mṛtyumṛtyutvayoḥ	mṛtyumṛtyutvānām
Locative	mṛtyumṛtyutve	mṛtyumṛtyutvayoḥ	mṛtyumṛtyutveṣu

Compound mṛtyumṛtyutva -

Adverb -mṛtyumṛtyutvam -mṛtyumṛtyutvāt