Declension table of ?ativṛddha

Neuter	Singular	Dual	Plural
Nominative	ativṛddham	ativṛddhe	ativṛddhāni
Vocative	ativṛddha	ativṛddhe	ativṛddhāni
Accusative	ativṛddham	ativṛddhe	ativṛddhāni
Instrumental	ativṛddhena	ativṛddhābhyām	ativṛddhaiḥ
Dative	ativṛddhāya	ativṛddhābhyām	ativṛddhebhyaḥ
Ablative	ativṛddhāt	ativṛddhābhyām	ativṛddhebhyaḥ
Genitive	ativṛddhasya	ativṛddhayoḥ	ativṛddhānām
Locative	ativṛddhe	ativṛddhayoḥ	ativṛddheṣu

Compound ativṛddha -

Adverb -ativṛddham -ativṛddhāt