Declension table of ?kāthika

Neuter	Singular	Dual	Plural
Nominative	kāthikam	kāthike	kāthikāni
Vocative	kāthika	kāthike	kāthikāni
Accusative	kāthikam	kāthike	kāthikāni
Instrumental	kāthikena	kāthikābhyām	kāthikaiḥ
Dative	kāthikāya	kāthikābhyām	kāthikebhyaḥ
Ablative	kāthikāt	kāthikābhyām	kāthikebhyaḥ
Genitive	kāthikasya	kāthikayoḥ	kāthikānām
Locative	kāthike	kāthikayoḥ	kāthikeṣu

Compound kāthika -

Adverb -kāthikam -kāthikāt