Declension table of ?apastambha

Masculine	Singular	Dual	Plural
Nominative	apastambhaḥ	apastambhau	apastambhāḥ
Vocative	apastambha	apastambhau	apastambhāḥ
Accusative	apastambham	apastambhau	apastambhān
Instrumental	apastambhena	apastambhābhyām	apastambhaiḥ apastambhebhiḥ
Dative	apastambhāya	apastambhābhyām	apastambhebhyaḥ
Ablative	apastambhāt	apastambhābhyām	apastambhebhyaḥ
Genitive	apastambhasya	apastambhayoḥ	apastambhānām
Locative	apastambhe	apastambhayoḥ	apastambheṣu

Compound apastambha -

Adverb -apastambham -apastambhāt