Declension table of ?cyava

Neuter	Singular	Dual	Plural
Nominative	cyavam	cyave	cyavāni
Vocative	cyava	cyave	cyavāni
Accusative	cyavam	cyave	cyavāni
Instrumental	cyavena	cyavābhyām	cyavaiḥ
Dative	cyavāya	cyavābhyām	cyavebhyaḥ
Ablative	cyavāt	cyavābhyām	cyavebhyaḥ
Genitive	cyavasya	cyavayoḥ	cyavānām
Locative	cyave	cyavayoḥ	cyaveṣu

Compound cyava -

Adverb -cyavam -cyavāt