Declension table of ?hadda

Masculine	Singular	Dual	Plural
Nominative	haddaḥ	haddau	haddāḥ
Vocative	hadda	haddau	haddāḥ
Accusative	haddam	haddau	haddān
Instrumental	haddena	haddābhyām	haddaiḥ haddebhiḥ
Dative	haddāya	haddābhyām	haddebhyaḥ
Ablative	haddāt	haddābhyām	haddebhyaḥ
Genitive	haddasya	haddayoḥ	haddānām
Locative	hadde	haddayoḥ	haddeṣu

Compound hadda -

Adverb -haddam -haddāt