Declension table of ?saptamāsya

Masculine	Singular	Dual	Plural
Nominative	saptamāsyaḥ	saptamāsyau	saptamāsyāḥ
Vocative	saptamāsya	saptamāsyau	saptamāsyāḥ
Accusative	saptamāsyam	saptamāsyau	saptamāsyān
Instrumental	saptamāsyena	saptamāsyābhyām	saptamāsyaiḥ saptamāsyebhiḥ
Dative	saptamāsyāya	saptamāsyābhyām	saptamāsyebhyaḥ
Ablative	saptamāsyāt	saptamāsyābhyām	saptamāsyebhyaḥ
Genitive	saptamāsyasya	saptamāsyayoḥ	saptamāsyānām
Locative	saptamāsye	saptamāsyayoḥ	saptamāsyeṣu

Compound saptamāsya -

Adverb -saptamāsyam -saptamāsyāt