Declension table of anarthaka

Neuter	Singular	Dual	Plural
Nominative	anarthakam	anarthake	anarthakāni
Vocative	anarthaka	anarthake	anarthakāni
Accusative	anarthakam	anarthake	anarthakāni
Instrumental	anarthakena	anarthakābhyām	anarthakaiḥ
Dative	anarthakāya	anarthakābhyām	anarthakebhyaḥ
Ablative	anarthakāt	anarthakābhyām	anarthakebhyaḥ
Genitive	anarthakasya	anarthakayoḥ	anarthakānām
Locative	anarthake	anarthakayoḥ	anarthakeṣu

Compound anarthaka -

Adverb -anarthakam -anarthakāt