Declension table of ?stumbhyamāna

Neuter	Singular	Dual	Plural
Nominative	stumbhyamānam	stumbhyamāne	stumbhyamānāni
Vocative	stumbhyamāna	stumbhyamāne	stumbhyamānāni
Accusative	stumbhyamānam	stumbhyamāne	stumbhyamānāni
Instrumental	stumbhyamānena	stumbhyamānābhyām	stumbhyamānaiḥ
Dative	stumbhyamānāya	stumbhyamānābhyām	stumbhyamānebhyaḥ
Ablative	stumbhyamānāt	stumbhyamānābhyām	stumbhyamānebhyaḥ
Genitive	stumbhyamānasya	stumbhyamānayoḥ	stumbhyamānānām
Locative	stumbhyamāne	stumbhyamānayoḥ	stumbhyamāneṣu

Compound stumbhyamāna -

Adverb -stumbhyamānam -stumbhyamānāt