Declension table of ?kausumbha

Neuter	Singular	Dual	Plural
Nominative	kausumbham	kausumbhe	kausumbhāni
Vocative	kausumbha	kausumbhe	kausumbhāni
Accusative	kausumbham	kausumbhe	kausumbhāni
Instrumental	kausumbhena	kausumbhābhyām	kausumbhaiḥ
Dative	kausumbhāya	kausumbhābhyām	kausumbhebhyaḥ
Ablative	kausumbhāt	kausumbhābhyām	kausumbhebhyaḥ
Genitive	kausumbhasya	kausumbhayoḥ	kausumbhānām
Locative	kausumbhe	kausumbhayoḥ	kausumbheṣu

Compound kausumbha -

Adverb -kausumbham -kausumbhāt