Declension table of ?saptamāsya

Neuter	Singular	Dual	Plural
Nominative	saptamāsyam	saptamāsye	saptamāsyāni
Vocative	saptamāsya	saptamāsye	saptamāsyāni
Accusative	saptamāsyam	saptamāsye	saptamāsyāni
Instrumental	saptamāsyena	saptamāsyābhyām	saptamāsyaiḥ
Dative	saptamāsyāya	saptamāsyābhyām	saptamāsyebhyaḥ
Ablative	saptamāsyāt	saptamāsyābhyām	saptamāsyebhyaḥ
Genitive	saptamāsyasya	saptamāsyayoḥ	saptamāsyānām
Locative	saptamāsye	saptamāsyayoḥ	saptamāsyeṣu

Compound saptamāsya -

Adverb -saptamāsyam -saptamāsyāt