Declension table of ?yamatva

Neuter	Singular	Dual	Plural
Nominative	yamatvam	yamatve	yamatvāni
Vocative	yamatva	yamatve	yamatvāni
Accusative	yamatvam	yamatve	yamatvāni
Instrumental	yamatvena	yamatvābhyām	yamatvaiḥ
Dative	yamatvāya	yamatvābhyām	yamatvebhyaḥ
Ablative	yamatvāt	yamatvābhyām	yamatvebhyaḥ
Genitive	yamatvasya	yamatvayoḥ	yamatvānām
Locative	yamatve	yamatvayoḥ	yamatveṣu

Compound yamatva -

Adverb -yamatvam -yamatvāt