Declension table of ?vṛddhārka

Masculine	Singular	Dual	Plural
Nominative	vṛddhārkaḥ	vṛddhārkau	vṛddhārkāḥ
Vocative	vṛddhārka	vṛddhārkau	vṛddhārkāḥ
Accusative	vṛddhārkam	vṛddhārkau	vṛddhārkān
Instrumental	vṛddhārkeṇa	vṛddhārkābhyām	vṛddhārkaiḥ vṛddhārkebhiḥ
Dative	vṛddhārkāya	vṛddhārkābhyām	vṛddhārkebhyaḥ
Ablative	vṛddhārkāt	vṛddhārkābhyām	vṛddhārkebhyaḥ
Genitive	vṛddhārkasya	vṛddhārkayoḥ	vṛddhārkāṇām
Locative	vṛddhārke	vṛddhārkayoḥ	vṛddhārkeṣu

Compound vṛddhārka -

Adverb -vṛddhārkam -vṛddhārkāt