Declension table of ?sutvakka

Neuter	Singular	Dual	Plural
Nominative	sutvakkam	sutvakke	sutvakkāni
Vocative	sutvakka	sutvakke	sutvakkāni
Accusative	sutvakkam	sutvakke	sutvakkāni
Instrumental	sutvakkena	sutvakkābhyām	sutvakkaiḥ
Dative	sutvakkāya	sutvakkābhyām	sutvakkebhyaḥ
Ablative	sutvakkāt	sutvakkābhyām	sutvakkebhyaḥ
Genitive	sutvakkasya	sutvakkayoḥ	sutvakkānām
Locative	sutvakke	sutvakkayoḥ	sutvakkeṣu

Compound sutvakka -

Adverb -sutvakkam -sutvakkāt