Declension table of ?ṛjīka

Neuter	Singular	Dual	Plural
Nominative	ṛjīkam	ṛjīke	ṛjīkāni
Vocative	ṛjīka	ṛjīke	ṛjīkāni
Accusative	ṛjīkam	ṛjīke	ṛjīkāni
Instrumental	ṛjīkena	ṛjīkābhyām	ṛjīkaiḥ
Dative	ṛjīkāya	ṛjīkābhyām	ṛjīkebhyaḥ
Ablative	ṛjīkāt	ṛjīkābhyām	ṛjīkebhyaḥ
Genitive	ṛjīkasya	ṛjīkayoḥ	ṛjīkānām
Locative	ṛjīke	ṛjīkayoḥ	ṛjīkeṣu

Compound ṛjīka -

Adverb -ṛjīkam -ṛjīkāt