Declension table of ?saptaha

Neuter	Singular	Dual	Plural
Nominative	saptaham	saptahe	saptahāni
Vocative	saptaha	saptahe	saptahāni
Accusative	saptaham	saptahe	saptahāni
Instrumental	saptahena	saptahābhyām	saptahaiḥ
Dative	saptahāya	saptahābhyām	saptahebhyaḥ
Ablative	saptahāt	saptahābhyām	saptahebhyaḥ
Genitive	saptahasya	saptahayoḥ	saptahānām
Locative	saptahe	saptahayoḥ	saptaheṣu

Compound saptaha -

Adverb -saptaham -saptahāt