Declension table of ?arthamatta

Neuter	Singular	Dual	Plural
Nominative	arthamattam	arthamatte	arthamattāni
Vocative	arthamatta	arthamatte	arthamattāni
Accusative	arthamattam	arthamatte	arthamattāni
Instrumental	arthamattena	arthamattābhyām	arthamattaiḥ
Dative	arthamattāya	arthamattābhyām	arthamattebhyaḥ
Ablative	arthamattāt	arthamattābhyām	arthamattebhyaḥ
Genitive	arthamattasya	arthamattayoḥ	arthamattānām
Locative	arthamatte	arthamattayoḥ	arthamatteṣu

Compound arthamatta -

Adverb -arthamattam -arthamattāt