Declension table of ?vipayas

Masculine	Singular	Dual	Plural
Nominative	vipayān	vipayāṃsau	vipayāṃsaḥ
Vocative	vipayan	vipayāṃsau	vipayāṃsaḥ
Accusative	vipayāṃsam	vipayāṃsau	vipayasaḥ
Instrumental	vipayasā	vipayobhyām	vipayobhiḥ
Dative	vipayase	vipayobhyām	vipayobhyaḥ
Ablative	vipayasaḥ	vipayobhyām	vipayobhyaḥ
Genitive	vipayasaḥ	vipayasoḥ	vipayasām
Locative	vipayasi	vipayasoḥ	vipayaḥsu

Compound vipayas -

Adverb -vipayas