Declension table of ?vibhūma

Neuter	Singular	Dual	Plural
Nominative	vibhūmam	vibhūme	vibhūmāni
Vocative	vibhūma	vibhūme	vibhūmāni
Accusative	vibhūmam	vibhūme	vibhūmāni
Instrumental	vibhūmena	vibhūmābhyām	vibhūmaiḥ
Dative	vibhūmāya	vibhūmābhyām	vibhūmebhyaḥ
Ablative	vibhūmāt	vibhūmābhyām	vibhūmebhyaḥ
Genitive	vibhūmasya	vibhūmayoḥ	vibhūmānām
Locative	vibhūme	vibhūmayoḥ	vibhūmeṣu

Compound vibhūma -

Adverb -vibhūmam -vibhūmāt