Declension table of ?ratnāṅkura

Masculine	Singular	Dual	Plural
Nominative	ratnāṅkuraḥ	ratnāṅkurau	ratnāṅkurāḥ
Vocative	ratnāṅkura	ratnāṅkurau	ratnāṅkurāḥ
Accusative	ratnāṅkuram	ratnāṅkurau	ratnāṅkurān
Instrumental	ratnāṅkureṇa	ratnāṅkurābhyām	ratnāṅkuraiḥ ratnāṅkurebhiḥ
Dative	ratnāṅkurāya	ratnāṅkurābhyām	ratnāṅkurebhyaḥ
Ablative	ratnāṅkurāt	ratnāṅkurābhyām	ratnāṅkurebhyaḥ
Genitive	ratnāṅkurasya	ratnāṅkurayoḥ	ratnāṅkurāṇām
Locative	ratnāṅkure	ratnāṅkurayoḥ	ratnāṅkureṣu

Compound ratnāṅkura -

Adverb -ratnāṅkuram -ratnāṅkurāt