Declension table of ?dīrghaveṇu

Masculine	Singular	Dual	Plural
Nominative	dīrghaveṇuḥ	dīrghaveṇū	dīrghaveṇavaḥ
Vocative	dīrghaveṇo	dīrghaveṇū	dīrghaveṇavaḥ
Accusative	dīrghaveṇum	dīrghaveṇū	dīrghaveṇūn
Instrumental	dīrghaveṇunā	dīrghaveṇubhyām	dīrghaveṇubhiḥ
Dative	dīrghaveṇave	dīrghaveṇubhyām	dīrghaveṇubhyaḥ
Ablative	dīrghaveṇoḥ	dīrghaveṇubhyām	dīrghaveṇubhyaḥ
Genitive	dīrghaveṇoḥ	dīrghaveṇvoḥ	dīrghaveṇūnām
Locative	dīrghaveṇau	dīrghaveṇvoḥ	dīrghaveṇuṣu

Compound dīrghaveṇu -

Adverb -dīrghaveṇu