Declension table of ?mahārthaka

Neuter	Singular	Dual	Plural
Nominative	mahārthakam	mahārthake	mahārthakāni
Vocative	mahārthaka	mahārthake	mahārthakāni
Accusative	mahārthakam	mahārthake	mahārthakāni
Instrumental	mahārthakena	mahārthakābhyām	mahārthakaiḥ
Dative	mahārthakāya	mahārthakābhyām	mahārthakebhyaḥ
Ablative	mahārthakāt	mahārthakābhyām	mahārthakebhyaḥ
Genitive	mahārthakasya	mahārthakayoḥ	mahārthakānām
Locative	mahārthake	mahārthakayoḥ	mahārthakeṣu

Compound mahārthaka -

Adverb -mahārthakam -mahārthakāt