Declension table of ?madhuravacana

Masculine	Singular	Dual	Plural
Nominative	madhuravacanaḥ	madhuravacanau	madhuravacanāḥ
Vocative	madhuravacana	madhuravacanau	madhuravacanāḥ
Accusative	madhuravacanam	madhuravacanau	madhuravacanān
Instrumental	madhuravacanena	madhuravacanābhyām	madhuravacanaiḥ madhuravacanebhiḥ
Dative	madhuravacanāya	madhuravacanābhyām	madhuravacanebhyaḥ
Ablative	madhuravacanāt	madhuravacanābhyām	madhuravacanebhyaḥ
Genitive	madhuravacanasya	madhuravacanayoḥ	madhuravacanānām
Locative	madhuravacane	madhuravacanayoḥ	madhuravacaneṣu

Compound madhuravacana -

Adverb -madhuravacanam -madhuravacanāt