Declension table of ?vyāyuka

Neuter	Singular	Dual	Plural
Nominative	vyāyukam	vyāyuke	vyāyukāni
Vocative	vyāyuka	vyāyuke	vyāyukāni
Accusative	vyāyukam	vyāyuke	vyāyukāni
Instrumental	vyāyukena	vyāyukābhyām	vyāyukaiḥ
Dative	vyāyukāya	vyāyukābhyām	vyāyukebhyaḥ
Ablative	vyāyukāt	vyāyukābhyām	vyāyukebhyaḥ
Genitive	vyāyukasya	vyāyukayoḥ	vyāyukānām
Locative	vyāyuke	vyāyukayoḥ	vyāyukeṣu

Compound vyāyuka -

Adverb -vyāyukam -vyāyukāt