Declension table of ?rahya

Neuter	Singular	Dual	Plural
Nominative	rahyam	rahye	rahyāṇi
Vocative	rahya	rahye	rahyāṇi
Accusative	rahyam	rahye	rahyāṇi
Instrumental	rahyeṇa	rahyābhyām	rahyaiḥ
Dative	rahyāya	rahyābhyām	rahyebhyaḥ
Ablative	rahyāt	rahyābhyām	rahyebhyaḥ
Genitive	rahyasya	rahyayoḥ	rahyāṇām
Locative	rahye	rahyayoḥ	rahyeṣu

Compound rahya -

Adverb -rahyam -rahyāt