Declension table of ?arūpaka

Masculine	Singular	Dual	Plural
Nominative	arūpakaḥ	arūpakau	arūpakāḥ
Vocative	arūpaka	arūpakau	arūpakāḥ
Accusative	arūpakam	arūpakau	arūpakān
Instrumental	arūpakeṇa	arūpakābhyām	arūpakaiḥ arūpakebhiḥ
Dative	arūpakāya	arūpakābhyām	arūpakebhyaḥ
Ablative	arūpakāt	arūpakābhyām	arūpakebhyaḥ
Genitive	arūpakasya	arūpakayoḥ	arūpakāṇām
Locative	arūpake	arūpakayoḥ	arūpakeṣu

Compound arūpaka -

Adverb -arūpakam -arūpakāt