Declension table of ?ūrdhvakarṇa

Neuter	Singular	Dual	Plural
Nominative	ūrdhvakarṇam	ūrdhvakarṇe	ūrdhvakarṇāni
Vocative	ūrdhvakarṇa	ūrdhvakarṇe	ūrdhvakarṇāni
Accusative	ūrdhvakarṇam	ūrdhvakarṇe	ūrdhvakarṇāni
Instrumental	ūrdhvakarṇena	ūrdhvakarṇābhyām	ūrdhvakarṇaiḥ
Dative	ūrdhvakarṇāya	ūrdhvakarṇābhyām	ūrdhvakarṇebhyaḥ
Ablative	ūrdhvakarṇāt	ūrdhvakarṇābhyām	ūrdhvakarṇebhyaḥ
Genitive	ūrdhvakarṇasya	ūrdhvakarṇayoḥ	ūrdhvakarṇānām
Locative	ūrdhvakarṇe	ūrdhvakarṇayoḥ	ūrdhvakarṇeṣu

Compound ūrdhvakarṇa -

Adverb -ūrdhvakarṇam -ūrdhvakarṇāt