Declension table of ?vāpya

Neuter	Singular	Dual	Plural
Nominative	vāpyam	vāpye	vāpyāni
Vocative	vāpya	vāpye	vāpyāni
Accusative	vāpyam	vāpye	vāpyāni
Instrumental	vāpyena	vāpyābhyām	vāpyaiḥ
Dative	vāpyāya	vāpyābhyām	vāpyebhyaḥ
Ablative	vāpyāt	vāpyābhyām	vāpyebhyaḥ
Genitive	vāpyasya	vāpyayoḥ	vāpyānām
Locative	vāpye	vāpyayoḥ	vāpyeṣu

Compound vāpya -

Adverb -vāpyam -vāpyāt