Declension table of ?saptārṇava

Neuter	Singular	Dual	Plural
Nominative	saptārṇavam	saptārṇave	saptārṇavāni
Vocative	saptārṇava	saptārṇave	saptārṇavāni
Accusative	saptārṇavam	saptārṇave	saptārṇavāni
Instrumental	saptārṇavena	saptārṇavābhyām	saptārṇavaiḥ
Dative	saptārṇavāya	saptārṇavābhyām	saptārṇavebhyaḥ
Ablative	saptārṇavāt	saptārṇavābhyām	saptārṇavebhyaḥ
Genitive	saptārṇavasya	saptārṇavayoḥ	saptārṇavānām
Locative	saptārṇave	saptārṇavayoḥ	saptārṇaveṣu

Compound saptārṇava -

Adverb -saptārṇavam -saptārṇavāt