Declension table of ?kuyava

Neuter	Singular	Dual	Plural
Nominative	kuyavam	kuyave	kuyavāni
Vocative	kuyava	kuyave	kuyavāni
Accusative	kuyavam	kuyave	kuyavāni
Instrumental	kuyavena	kuyavābhyām	kuyavaiḥ
Dative	kuyavāya	kuyavābhyām	kuyavebhyaḥ
Ablative	kuyavāt	kuyavābhyām	kuyavebhyaḥ
Genitive	kuyavasya	kuyavayoḥ	kuyavānām
Locative	kuyave	kuyavayoḥ	kuyaveṣu

Compound kuyava -

Adverb -kuyavam -kuyavāt