Declension table of ?prayogīya

Masculine	Singular	Dual	Plural
Nominative	prayogīyaḥ	prayogīyau	prayogīyāḥ
Vocative	prayogīya	prayogīyau	prayogīyāḥ
Accusative	prayogīyam	prayogīyau	prayogīyān
Instrumental	prayogīyeṇa	prayogīyābhyām	prayogīyaiḥ prayogīyebhiḥ
Dative	prayogīyāya	prayogīyābhyām	prayogīyebhyaḥ
Ablative	prayogīyāt	prayogīyābhyām	prayogīyebhyaḥ
Genitive	prayogīyasya	prayogīyayoḥ	prayogīyāṇām
Locative	prayogīye	prayogīyayoḥ	prayogīyeṣu

Compound prayogīya -

Adverb -prayogīyam -prayogīyāt