Declension table of ?samupastambha

Masculine	Singular	Dual	Plural
Nominative	samupastambhaḥ	samupastambhau	samupastambhāḥ
Vocative	samupastambha	samupastambhau	samupastambhāḥ
Accusative	samupastambham	samupastambhau	samupastambhān
Instrumental	samupastambhena	samupastambhābhyām	samupastambhaiḥ samupastambhebhiḥ
Dative	samupastambhāya	samupastambhābhyām	samupastambhebhyaḥ
Ablative	samupastambhāt	samupastambhābhyām	samupastambhebhyaḥ
Genitive	samupastambhasya	samupastambhayoḥ	samupastambhānām
Locative	samupastambhe	samupastambhayoḥ	samupastambheṣu

Compound samupastambha -

Adverb -samupastambham -samupastambhāt