Declension table of ?prayogīya

Neuter	Singular	Dual	Plural
Nominative	prayogīyam	prayogīye	prayogīyāṇi
Vocative	prayogīya	prayogīye	prayogīyāṇi
Accusative	prayogīyam	prayogīye	prayogīyāṇi
Instrumental	prayogīyeṇa	prayogīyābhyām	prayogīyaiḥ
Dative	prayogīyāya	prayogīyābhyām	prayogīyebhyaḥ
Ablative	prayogīyāt	prayogīyābhyām	prayogīyebhyaḥ
Genitive	prayogīyasya	prayogīyayoḥ	prayogīyāṇām
Locative	prayogīye	prayogīyayoḥ	prayogīyeṣu

Compound prayogīya -

Adverb -prayogīyam -prayogīyāt