Declension table of ?pūrvādhika

Neuter	Singular	Dual	Plural
Nominative	pūrvādhikam	pūrvādhike	pūrvādhikāni
Vocative	pūrvādhika	pūrvādhike	pūrvādhikāni
Accusative	pūrvādhikam	pūrvādhike	pūrvādhikāni
Instrumental	pūrvādhikena	pūrvādhikābhyām	pūrvādhikaiḥ
Dative	pūrvādhikāya	pūrvādhikābhyām	pūrvādhikebhyaḥ
Ablative	pūrvādhikāt	pūrvādhikābhyām	pūrvādhikebhyaḥ
Genitive	pūrvādhikasya	pūrvādhikayoḥ	pūrvādhikānām
Locative	pūrvādhike	pūrvādhikayoḥ	pūrvādhikeṣu

Compound pūrvādhika -

Adverb -pūrvādhikam -pūrvādhikāt