Declension table of ?hakkāhakka

Masculine	Singular	Dual	Plural
Nominative	hakkāhakkaḥ	hakkāhakkau	hakkāhakkāḥ
Vocative	hakkāhakka	hakkāhakkau	hakkāhakkāḥ
Accusative	hakkāhakkam	hakkāhakkau	hakkāhakkān
Instrumental	hakkāhakkena	hakkāhakkābhyām	hakkāhakkaiḥ hakkāhakkebhiḥ
Dative	hakkāhakkāya	hakkāhakkābhyām	hakkāhakkebhyaḥ
Ablative	hakkāhakkāt	hakkāhakkābhyām	hakkāhakkebhyaḥ
Genitive	hakkāhakkasya	hakkāhakkayoḥ	hakkāhakkānām
Locative	hakkāhakke	hakkāhakkayoḥ	hakkāhakkeṣu

Compound hakkāhakka -

Adverb -hakkāhakkam -hakkāhakkāt