Declension table of ?sukhya

Neuter	Singular	Dual	Plural
Nominative	sukhyam	sukhye	sukhyāni
Vocative	sukhya	sukhye	sukhyāni
Accusative	sukhyam	sukhye	sukhyāni
Instrumental	sukhyena	sukhyābhyām	sukhyaiḥ
Dative	sukhyāya	sukhyābhyām	sukhyebhyaḥ
Ablative	sukhyāt	sukhyābhyām	sukhyebhyaḥ
Genitive	sukhyasya	sukhyayoḥ	sukhyānām
Locative	sukhye	sukhyayoḥ	sukhyeṣu

Compound sukhya -

Adverb -sukhyam -sukhyāt