Declension table of ?uttamatva

Neuter	Singular	Dual	Plural
Nominative	uttamatvam	uttamatve	uttamatvāni
Vocative	uttamatva	uttamatve	uttamatvāni
Accusative	uttamatvam	uttamatve	uttamatvāni
Instrumental	uttamatvena	uttamatvābhyām	uttamatvaiḥ
Dative	uttamatvāya	uttamatvābhyām	uttamatvebhyaḥ
Ablative	uttamatvāt	uttamatvābhyām	uttamatvebhyaḥ
Genitive	uttamatvasya	uttamatvayoḥ	uttamatvānām
Locative	uttamatve	uttamatvayoḥ	uttamatveṣu

Compound uttamatva -

Adverb -uttamatvam -uttamatvāt