Declension table of ?saptamīya

Masculine	Singular	Dual	Plural
Nominative	saptamīyaḥ	saptamīyau	saptamīyāḥ
Vocative	saptamīya	saptamīyau	saptamīyāḥ
Accusative	saptamīyam	saptamīyau	saptamīyān
Instrumental	saptamīyena	saptamīyābhyām	saptamīyaiḥ saptamīyebhiḥ
Dative	saptamīyāya	saptamīyābhyām	saptamīyebhyaḥ
Ablative	saptamīyāt	saptamīyābhyām	saptamīyebhyaḥ
Genitive	saptamīyasya	saptamīyayoḥ	saptamīyānām
Locative	saptamīye	saptamīyayoḥ	saptamīyeṣu

Compound saptamīya -

Adverb -saptamīyam -saptamīyāt