Declension table of anartha

Neuter	Singular	Dual	Plural
Nominative	anartham	anarthe	anarthāni
Vocative	anartha	anarthe	anarthāni
Accusative	anartham	anarthe	anarthāni
Instrumental	anarthena	anarthābhyām	anarthaiḥ
Dative	anarthāya	anarthābhyām	anarthebhyaḥ
Ablative	anarthāt	anarthābhyām	anarthebhyaḥ
Genitive	anarthasya	anarthayoḥ	anarthānām
Locative	anarthe	anarthayoḥ	anartheṣu

Compound anartha -

Adverb -anartham -anarthāt