Declension table of ?śumbhana

Neuter	Singular	Dual	Plural
Nominative	śumbhanam	śumbhane	śumbhanāni
Vocative	śumbhana	śumbhane	śumbhanāni
Accusative	śumbhanam	śumbhane	śumbhanāni
Instrumental	śumbhanena	śumbhanābhyām	śumbhanaiḥ
Dative	śumbhanāya	śumbhanābhyām	śumbhanebhyaḥ
Ablative	śumbhanāt	śumbhanābhyām	śumbhanebhyaḥ
Genitive	śumbhanasya	śumbhanayoḥ	śumbhanānām
Locative	śumbhane	śumbhanayoḥ	śumbhaneṣu

Compound śumbhana -

Adverb -śumbhanam -śumbhanāt