Declension table of ?kupūya

Masculine	Singular	Dual	Plural
Nominative	kupūyaḥ	kupūyau	kupūyāḥ
Vocative	kupūya	kupūyau	kupūyāḥ
Accusative	kupūyam	kupūyau	kupūyān
Instrumental	kupūyena	kupūyābhyām	kupūyaiḥ kupūyebhiḥ
Dative	kupūyāya	kupūyābhyām	kupūyebhyaḥ
Ablative	kupūyāt	kupūyābhyām	kupūyebhyaḥ
Genitive	kupūyasya	kupūyayoḥ	kupūyānām
Locative	kupūye	kupūyayoḥ	kupūyeṣu

Compound kupūya -

Adverb -kupūyam -kupūyāt