Declension table of ?sapti

Masculine	Singular	Dual	Plural
Nominative	saptiḥ	saptī	saptayaḥ
Vocative	sapte	saptī	saptayaḥ
Accusative	saptim	saptī	saptīn
Instrumental	saptinā	saptibhyām	saptibhiḥ
Dative	saptaye	saptibhyām	saptibhyaḥ
Ablative	sapteḥ	saptibhyām	saptibhyaḥ
Genitive	sapteḥ	saptyoḥ	saptīnām
Locative	saptau	saptyoḥ	saptiṣu

Compound sapti -

Adverb -sapti