Declension table of ?anūrdhva

Neuter	Singular	Dual	Plural
Nominative	anūrdhvam	anūrdhve	anūrdhvāni
Vocative	anūrdhva	anūrdhve	anūrdhvāni
Accusative	anūrdhvam	anūrdhve	anūrdhvāni
Instrumental	anūrdhvena	anūrdhvābhyām	anūrdhvaiḥ
Dative	anūrdhvāya	anūrdhvābhyām	anūrdhvebhyaḥ
Ablative	anūrdhvāt	anūrdhvābhyām	anūrdhvebhyaḥ
Genitive	anūrdhvasya	anūrdhvayoḥ	anūrdhvānām
Locative	anūrdhve	anūrdhvayoḥ	anūrdhveṣu

Compound anūrdhva -

Adverb -anūrdhvam -anūrdhvāt