Declension table of ?ativṛddha

Masculine	Singular	Dual	Plural
Nominative	ativṛddhaḥ	ativṛddhau	ativṛddhāḥ
Vocative	ativṛddha	ativṛddhau	ativṛddhāḥ
Accusative	ativṛddham	ativṛddhau	ativṛddhān
Instrumental	ativṛddhena	ativṛddhābhyām	ativṛddhaiḥ ativṛddhebhiḥ
Dative	ativṛddhāya	ativṛddhābhyām	ativṛddhebhyaḥ
Ablative	ativṛddhāt	ativṛddhābhyām	ativṛddhebhyaḥ
Genitive	ativṛddhasya	ativṛddhayoḥ	ativṛddhānām
Locative	ativṛddhe	ativṛddhayoḥ	ativṛddheṣu

Compound ativṛddha -

Adverb -ativṛddham -ativṛddhāt