Declension table of ?samavāyatva

Neuter	Singular	Dual	Plural
Nominative	samavāyatvam	samavāyatve	samavāyatvāni
Vocative	samavāyatva	samavāyatve	samavāyatvāni
Accusative	samavāyatvam	samavāyatve	samavāyatvāni
Instrumental	samavāyatvena	samavāyatvābhyām	samavāyatvaiḥ
Dative	samavāyatvāya	samavāyatvābhyām	samavāyatvebhyaḥ
Ablative	samavāyatvāt	samavāyatvābhyām	samavāyatvebhyaḥ
Genitive	samavāyatvasya	samavāyatvayoḥ	samavāyatvānām
Locative	samavāyatve	samavāyatvayoḥ	samavāyatveṣu

Compound samavāyatva -

Adverb -samavāyatvam -samavāyatvāt