Declension table of ?sumadhya

Neuter	Singular	Dual	Plural
Nominative	sumadhyam	sumadhye	sumadhyāni
Vocative	sumadhya	sumadhye	sumadhyāni
Accusative	sumadhyam	sumadhye	sumadhyāni
Instrumental	sumadhyena	sumadhyābhyām	sumadhyaiḥ
Dative	sumadhyāya	sumadhyābhyām	sumadhyebhyaḥ
Ablative	sumadhyāt	sumadhyābhyām	sumadhyebhyaḥ
Genitive	sumadhyasya	sumadhyayoḥ	sumadhyānām
Locative	sumadhye	sumadhyayoḥ	sumadhyeṣu

Compound sumadhya -

Adverb -sumadhyam -sumadhyāt