Declension table of sumati

Neuter	Singular	Dual	Plural
Nominative	sumati	sumatinī	sumatīni
Vocative	sumati	sumatinī	sumatīni
Accusative	sumati	sumatinī	sumatīni
Instrumental	sumatinā	sumatibhyām	sumatibhiḥ
Dative	sumatine	sumatibhyām	sumatibhyaḥ
Ablative	sumatinaḥ	sumatibhyām	sumatibhyaḥ
Genitive	sumatinaḥ	sumatinoḥ	sumatīnām
Locative	sumatini	sumatinoḥ	sumatiṣu

Compound sumati -

Adverb -sumati