eeeroer enfeoff enferre epernon errorof exponer feoffee feoffer feoffor ferrere ferrero ferrone foo-foo forfere forfone forfree freefor freenex freeppp freopen nenonen neo-pop nonfree nonpoor nonroof nooneon norroen off-off offeree offerer offeror ofproof one-off one-one onefree onexone onoffer onoffon openexr openfor openone orepeer pee-pee perenne peronne perono- peroxo- perrero perrone perrore pexonne pfeffer poo-poo poonoor pop-off popopen porpere porpore poxoreo preener preferr preffer prepere prepone prepper pro-rex proffer proffre proofer proofre propene propero propone proppen propper proxene refeoff referee referer refrene renfroe rennere reoffer repreef reprefe reproof rerefer ropeoff xe-none xenforo xeroxer xopenex xxxxxxx