Declension table of ?akupyaka

Neuter	Singular	Dual	Plural
Nominative	akupyakam	akupyake	akupyakāni
Vocative	akupyaka	akupyake	akupyakāni
Accusative	akupyakam	akupyake	akupyakāni
Instrumental	akupyakena	akupyakābhyām	akupyakaiḥ
Dative	akupyakāya	akupyakābhyām	akupyakebhyaḥ
Ablative	akupyakāt	akupyakābhyām	akupyakebhyaḥ
Genitive	akupyakasya	akupyakayoḥ	akupyakānām
Locative	akupyake	akupyakayoḥ	akupyakeṣu

Compound akupyaka -

Adverb -akupyakam -akupyakāt