Declension table of ?prayas

Masculine	Singular	Dual	Plural
Nominative	prayān	prayāṃsau	prayāṃsaḥ
Vocative	prayan	prayāṃsau	prayāṃsaḥ
Accusative	prayāṃsam	prayāṃsau	prayasaḥ
Instrumental	prayasā	prayobhyām	prayobhiḥ
Dative	prayase	prayobhyām	prayobhyaḥ
Ablative	prayasaḥ	prayobhyām	prayobhyaḥ
Genitive	prayasaḥ	prayasoḥ	prayasām
Locative	prayasi	prayasoḥ	prayaḥsu

Compound prayas -

Adverb -prayas