Declension table of ?ṛṇāntaka

Masculine	Singular	Dual	Plural
Nominative	ṛṇāntakaḥ	ṛṇāntakau	ṛṇāntakāḥ
Vocative	ṛṇāntaka	ṛṇāntakau	ṛṇāntakāḥ
Accusative	ṛṇāntakam	ṛṇāntakau	ṛṇāntakān
Instrumental	ṛṇāntakena	ṛṇāntakābhyām	ṛṇāntakaiḥ ṛṇāntakebhiḥ
Dative	ṛṇāntakāya	ṛṇāntakābhyām	ṛṇāntakebhyaḥ
Ablative	ṛṇāntakāt	ṛṇāntakābhyām	ṛṇāntakebhyaḥ
Genitive	ṛṇāntakasya	ṛṇāntakayoḥ	ṛṇāntakānām
Locative	ṛṇāntake	ṛṇāntakayoḥ	ṛṇāntakeṣu

Compound ṛṇāntaka -

Adverb -ṛṇāntakam -ṛṇāntakāt