Declension table of ?sarvādhika

Neuter	Singular	Dual	Plural
Nominative	sarvādhikam	sarvādhike	sarvādhikāni
Vocative	sarvādhika	sarvādhike	sarvādhikāni
Accusative	sarvādhikam	sarvādhike	sarvādhikāni
Instrumental	sarvādhikena	sarvādhikābhyām	sarvādhikaiḥ
Dative	sarvādhikāya	sarvādhikābhyām	sarvādhikebhyaḥ
Ablative	sarvādhikāt	sarvādhikābhyām	sarvādhikebhyaḥ
Genitive	sarvādhikasya	sarvādhikayoḥ	sarvādhikānām
Locative	sarvādhike	sarvādhikayoḥ	sarvādhikeṣu

Compound sarvādhika -

Adverb -sarvādhikam -sarvādhikāt