Declension table of ?koca

Masculine	Singular	Dual	Plural
Nominative	kocaḥ	kocau	kocāḥ
Vocative	koca	kocau	kocāḥ
Accusative	kocam	kocau	kocān
Instrumental	kocena	kocābhyām	kocaiḥ kocebhiḥ
Dative	kocāya	kocābhyām	kocebhyaḥ
Ablative	kocāt	kocābhyām	kocebhyaḥ
Genitive	kocasya	kocayoḥ	kocānām
Locative	koce	kocayoḥ	koceṣu

Compound koca -

Adverb -kocam -kocāt