Declension table of ?dattādatta

Masculine	Singular	Dual	Plural
Nominative	dattādattaḥ	dattādattau	dattādattāḥ
Vocative	dattādatta	dattādattau	dattādattāḥ
Accusative	dattādattam	dattādattau	dattādattān
Instrumental	dattādattena	dattādattābhyām	dattādattaiḥ dattādattebhiḥ
Dative	dattādattāya	dattādattābhyām	dattādattebhyaḥ
Ablative	dattādattāt	dattādattābhyām	dattādattebhyaḥ
Genitive	dattādattasya	dattādattayoḥ	dattādattānām
Locative	dattādatte	dattādattayoḥ	dattādatteṣu

Compound dattādatta -

Adverb -dattādattam -dattādattāt