Declension table of ?sannivāya

Masculine	Singular	Dual	Plural
Nominative	sannivāyaḥ	sannivāyau	sannivāyāḥ
Vocative	sannivāya	sannivāyau	sannivāyāḥ
Accusative	sannivāyam	sannivāyau	sannivāyān
Instrumental	sannivāyena	sannivāyābhyām	sannivāyaiḥ sannivāyebhiḥ
Dative	sannivāyāya	sannivāyābhyām	sannivāyebhyaḥ
Ablative	sannivāyāt	sannivāyābhyām	sannivāyebhyaḥ
Genitive	sannivāyasya	sannivāyayoḥ	sannivāyānām
Locative	sannivāye	sannivāyayoḥ	sannivāyeṣu

Compound sannivāya -

Adverb -sannivāyam -sannivāyāt