Declension table of ?dīrghatanu

Neuter	Singular	Dual	Plural
Nominative	dīrghatanu	dīrghatanunī	dīrghatanūni
Vocative	dīrghatanu	dīrghatanunī	dīrghatanūni
Accusative	dīrghatanu	dīrghatanunī	dīrghatanūni
Instrumental	dīrghatanunā	dīrghatanubhyām	dīrghatanubhiḥ
Dative	dīrghatanune	dīrghatanubhyām	dīrghatanubhyaḥ
Ablative	dīrghatanunaḥ	dīrghatanubhyām	dīrghatanubhyaḥ
Genitive	dīrghatanunaḥ	dīrghatanunoḥ	dīrghatanūnām
Locative	dīrghatanuni	dīrghatanunoḥ	dīrghatanuṣu

Compound dīrghatanu -

Adverb -dīrghatanu