Declension table of ?catta

Masculine	Singular	Dual	Plural
Nominative	cattaḥ	cattau	cattāḥ
Vocative	catta	cattau	cattāḥ
Accusative	cattam	cattau	cattān
Instrumental	cattena	cattābhyām	cattaiḥ cattebhiḥ
Dative	cattāya	cattābhyām	cattebhyaḥ
Ablative	cattāt	cattābhyām	cattebhyaḥ
Genitive	cattasya	cattayoḥ	cattānām
Locative	catte	cattayoḥ	catteṣu

Compound catta -

Adverb -cattam -cattāt