Declension table of ?kaṭhara

Masculine	Singular	Dual	Plural
Nominative	kaṭharaḥ	kaṭharau	kaṭharāḥ
Vocative	kaṭhara	kaṭharau	kaṭharāḥ
Accusative	kaṭharam	kaṭharau	kaṭharān
Instrumental	kaṭhareṇa	kaṭharābhyām	kaṭharaiḥ kaṭharebhiḥ
Dative	kaṭharāya	kaṭharābhyām	kaṭharebhyaḥ
Ablative	kaṭharāt	kaṭharābhyām	kaṭharebhyaḥ
Genitive	kaṭharasya	kaṭharayoḥ	kaṭharāṇām
Locative	kaṭhare	kaṭharayoḥ	kaṭhareṣu

Compound kaṭhara -

Adverb -kaṭharam -kaṭharāt