Declension table of ?kūyava

Neuter	Singular	Dual	Plural
Nominative	kūyavam	kūyave	kūyavāni
Vocative	kūyava	kūyave	kūyavāni
Accusative	kūyavam	kūyave	kūyavāni
Instrumental	kūyavena	kūyavābhyām	kūyavaiḥ
Dative	kūyavāya	kūyavābhyām	kūyavebhyaḥ
Ablative	kūyavāt	kūyavābhyām	kūyavebhyaḥ
Genitive	kūyavasya	kūyavayoḥ	kūyavānām
Locative	kūyave	kūyavayoḥ	kūyaveṣu

Compound kūyava -

Adverb -kūyavam -kūyavāt