Declension table of ?saṃvādaka

Neuter	Singular	Dual	Plural
Nominative	saṃvādakam	saṃvādake	saṃvādakāni
Vocative	saṃvādaka	saṃvādake	saṃvādakāni
Accusative	saṃvādakam	saṃvādake	saṃvādakāni
Instrumental	saṃvādakena	saṃvādakābhyām	saṃvādakaiḥ
Dative	saṃvādakāya	saṃvādakābhyām	saṃvādakebhyaḥ
Ablative	saṃvādakāt	saṃvādakābhyām	saṃvādakebhyaḥ
Genitive	saṃvādakasya	saṃvādakayoḥ	saṃvādakānām
Locative	saṃvādake	saṃvādakayoḥ	saṃvādakeṣu

Compound saṃvādaka -

Adverb -saṃvādakam -saṃvādakāt