Declension table of ?saptārcis

Masculine	Singular	Dual	Plural
Nominative	saptārciḥ	saptārciṣau	saptārciṣaḥ
Vocative	saptārciḥ	saptārciṣau	saptārciṣaḥ
Accusative	saptārciṣam	saptārciṣau	saptārciṣaḥ
Instrumental	saptārciṣā	saptārcirbhyām	saptārcirbhiḥ
Dative	saptārciṣe	saptārcirbhyām	saptārcirbhyaḥ
Ablative	saptārciṣaḥ	saptārcirbhyām	saptārcirbhyaḥ
Genitive	saptārciṣaḥ	saptārciṣoḥ	saptārciṣām
Locative	saptārciṣi	saptārciṣoḥ	saptārciḥṣu

Compound saptārcis -

Adverb -saptārcis