Declension table of ?dīrghaśira

Masculine	Singular	Dual	Plural
Nominative	dīrghaśiraḥ	dīrghaśirau	dīrghaśirāḥ
Vocative	dīrghaśira	dīrghaśirau	dīrghaśirāḥ
Accusative	dīrghaśiram	dīrghaśirau	dīrghaśirān
Instrumental	dīrghaśireṇa	dīrghaśirābhyām	dīrghaśiraiḥ dīrghaśirebhiḥ
Dative	dīrghaśirāya	dīrghaśirābhyām	dīrghaśirebhyaḥ
Ablative	dīrghaśirāt	dīrghaśirābhyām	dīrghaśirebhyaḥ
Genitive	dīrghaśirasya	dīrghaśirayoḥ	dīrghaśirāṇām
Locative	dīrghaśire	dīrghaśirayoḥ	dīrghaśireṣu

Compound dīrghaśira -

Adverb -dīrghaśiram -dīrghaśirāt