Declension table of ?śumbhya

Masculine	Singular	Dual	Plural
Nominative	śumbhyaḥ	śumbhyau	śumbhyāḥ
Vocative	śumbhya	śumbhyau	śumbhyāḥ
Accusative	śumbhyam	śumbhyau	śumbhyān
Instrumental	śumbhyena	śumbhyābhyām	śumbhyaiḥ śumbhyebhiḥ
Dative	śumbhyāya	śumbhyābhyām	śumbhyebhyaḥ
Ablative	śumbhyāt	śumbhyābhyām	śumbhyebhyaḥ
Genitive	śumbhyasya	śumbhyayoḥ	śumbhyānām
Locative	śumbhye	śumbhyayoḥ	śumbhyeṣu

Compound śumbhya -

Adverb -śumbhyam -śumbhyāt