Declension table of ?sudūra

Neuter	Singular	Dual	Plural
Nominative	sudūram	sudūre	sudūrāṇi
Vocative	sudūra	sudūre	sudūrāṇi
Accusative	sudūram	sudūre	sudūrāṇi
Instrumental	sudūreṇa	sudūrābhyām	sudūraiḥ
Dative	sudūrāya	sudūrābhyām	sudūrebhyaḥ
Ablative	sudūrāt	sudūrābhyām	sudūrebhyaḥ
Genitive	sudūrasya	sudūrayoḥ	sudūrāṇām
Locative	sudūre	sudūrayoḥ	sudūreṣu

Compound sudūra -

Adverb -sudūram -sudūrāt