Declension table of ?samāvāya

Masculine	Singular	Dual	Plural
Nominative	samāvāyaḥ	samāvāyau	samāvāyāḥ
Vocative	samāvāya	samāvāyau	samāvāyāḥ
Accusative	samāvāyam	samāvāyau	samāvāyān
Instrumental	samāvāyena	samāvāyābhyām	samāvāyaiḥ samāvāyebhiḥ
Dative	samāvāyāya	samāvāyābhyām	samāvāyebhyaḥ
Ablative	samāvāyāt	samāvāyābhyām	samāvāyebhyaḥ
Genitive	samāvāyasya	samāvāyayoḥ	samāvāyānām
Locative	samāvāye	samāvāyayoḥ	samāvāyeṣu

Compound samāvāya -

Adverb -samāvāyam -samāvāyāt