Declension table of ?saṃsevya

Neuter	Singular	Dual	Plural
Nominative	saṃsevyam	saṃsevye	saṃsevyāni
Vocative	saṃsevya	saṃsevye	saṃsevyāni
Accusative	saṃsevyam	saṃsevye	saṃsevyāni
Instrumental	saṃsevyena	saṃsevyābhyām	saṃsevyaiḥ
Dative	saṃsevyāya	saṃsevyābhyām	saṃsevyebhyaḥ
Ablative	saṃsevyāt	saṃsevyābhyām	saṃsevyebhyaḥ
Genitive	saṃsevyasya	saṃsevyayoḥ	saṃsevyānām
Locative	saṃsevye	saṃsevyayoḥ	saṃsevyeṣu

Compound saṃsevya -

Adverb -saṃsevyam -saṃsevyāt