Declension table of ?tarkaratna

Neuter	Singular	Dual	Plural
Nominative	tarkaratnam	tarkaratne	tarkaratnāni
Vocative	tarkaratna	tarkaratne	tarkaratnāni
Accusative	tarkaratnam	tarkaratne	tarkaratnāni
Instrumental	tarkaratnena	tarkaratnābhyām	tarkaratnaiḥ
Dative	tarkaratnāya	tarkaratnābhyām	tarkaratnebhyaḥ
Ablative	tarkaratnāt	tarkaratnābhyām	tarkaratnebhyaḥ
Genitive	tarkaratnasya	tarkaratnayoḥ	tarkaratnānām
Locative	tarkaratne	tarkaratnayoḥ	tarkaratneṣu

Compound tarkaratna -

Adverb -tarkaratnam -tarkaratnāt