Declension table of ?dhvasira

Neuter	Singular	Dual	Plural
Nominative	dhvasiram	dhvasire	dhvasirāṇi
Vocative	dhvasira	dhvasire	dhvasirāṇi
Accusative	dhvasiram	dhvasire	dhvasirāṇi
Instrumental	dhvasireṇa	dhvasirābhyām	dhvasiraiḥ
Dative	dhvasirāya	dhvasirābhyām	dhvasirebhyaḥ
Ablative	dhvasirāt	dhvasirābhyām	dhvasirebhyaḥ
Genitive	dhvasirasya	dhvasirayoḥ	dhvasirāṇām
Locative	dhvasire	dhvasirayoḥ	dhvasireṣu

Compound dhvasira -

Adverb -dhvasiram -dhvasirāt