Declension table of ?karkara

Neuter	Singular	Dual	Plural
Nominative	karkaram	karkare	karkarāṇi
Vocative	karkara	karkare	karkarāṇi
Accusative	karkaram	karkare	karkarāṇi
Instrumental	karkareṇa	karkarābhyām	karkaraiḥ
Dative	karkarāya	karkarābhyām	karkarebhyaḥ
Ablative	karkarāt	karkarābhyām	karkarebhyaḥ
Genitive	karkarasya	karkarayoḥ	karkarāṇām
Locative	karkare	karkarayoḥ	karkareṣu

Compound karkara -

Adverb -karkaram -karkarāt