Declension table of ?āca

Masculine	Singular	Dual	Plural
Nominative	ācaḥ	ācau	ācāḥ
Vocative	āca	ācau	ācāḥ
Accusative	ācam	ācau	ācān
Instrumental	ācena	ācābhyām	ācaiḥ ācebhiḥ
Dative	ācāya	ācābhyām	ācebhyaḥ
Ablative	ācāt	ācābhyām	ācebhyaḥ
Genitive	ācasya	ācayoḥ	ācānām
Locative	āce	ācayoḥ	āceṣu

Compound āca -

Adverb -ācam -ācāt