Declension table of ?ṛṇin

Neuter	Singular	Dual	Plural
Nominative	ṛṇi	ṛṇinī	ṛṇīni
Vocative	ṛṇin ṛṇi	ṛṇinī	ṛṇīni
Accusative	ṛṇi	ṛṇinī	ṛṇīni
Instrumental	ṛṇinā	ṛṇibhyām	ṛṇibhiḥ
Dative	ṛṇine	ṛṇibhyām	ṛṇibhyaḥ
Ablative	ṛṇinaḥ	ṛṇibhyām	ṛṇibhyaḥ
Genitive	ṛṇinaḥ	ṛṇinoḥ	ṛṇinām
Locative	ṛṇini	ṛṇinoḥ	ṛṇiṣu

Compound ṛṇi -

Adverb -ṛṇi