Declension table of ?ātmānanda

Neuter	Singular	Dual	Plural
Nominative	ātmānandam	ātmānande	ātmānandāni
Vocative	ātmānanda	ātmānande	ātmānandāni
Accusative	ātmānandam	ātmānande	ātmānandāni
Instrumental	ātmānandena	ātmānandābhyām	ātmānandaiḥ
Dative	ātmānandāya	ātmānandābhyām	ātmānandebhyaḥ
Ablative	ātmānandāt	ātmānandābhyām	ātmānandebhyaḥ
Genitive	ātmānandasya	ātmānandayoḥ	ātmānandānām
Locative	ātmānande	ātmānandayoḥ	ātmānandeṣu

Compound ātmānanda -

Adverb -ātmānandam -ātmānandāt