Parnassus rhymes with:
acidosis, analysis, antithesis, apotheosis, aransas, archdiocese, arteriosclerosis, asbestosis, axis, banctexas, basis, calabasas, camdessus, canariensis, catharsis, caucasus, census, cirrhosis, colossus, consensus, crisis, diagnosis, dialysis, electrolysis, emphasis, fibrosis, francis, francis', genesis, geotaxis, glacis, hattusas, heterosis, homeostasis, hydrolysis, hypnosis, hypothesis, isis, lexus, manassas, mataksas, maxus, meiosis, metamorphasis, metamorphosis, metaxas, misdiagnosis, morphogenesis, narcissus, necrosis, nephrosis, neurosis, nexus, paralysis, pegasus, philippoussis, plexus, proboscis, prognosis, psoriasis, psychoanalysis, psychokinesis, psychosis, rhesus, sclerosis, seixas, symbiosis, synthesis, tarsus, texas, thesis, thomasas, thrombosis, ursus, versus
Parnassus sounds like:
pairing, papering, papernick, papier-mache, paramax, paramus, paranoiac, paring, parnes, parness, peering, peppering, permanence, pernice, pernicious, perrins, pharaonic, pharmacia, pharmacies, pharmacy, pharynx, pheromones, poring, pouring, powering, prance, prances, prange, prank, pranks, prawns, praying, prearrange, prearranges, preeminence, preening, premise, premises, premiums, prensa, preying, priam's, primack, primacy, prime's, primeaux, primeco, primenews, primes, priming, primo's, primus, prince, prince's, princes, princess, princess', princess's, princesses, pring, prinkey, prinos, prins, prinz, prinz's, prominence, prominences, promiscuous, promise, promises, promos, proms, promus, prong, prongs, pronounce, pronounces, pronouns, prunes, pruning, prying, purring, pyrenees, pyrenees'