Here's what rhymes with perhuman.
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unum ruin fusion perfusion loosen lupin solution union diffusion illusion proven allusion effusion elution gluten mucin neuen newton evolution pollution dissolution infusion persecution delusion dilution occlusion collusion profusion reunion seclusion absolution devolution disunion disillusion reperfusion ablution suffusion groomsmen soupcon unloosen confusion resolution revolution exclusion inclusion prosecution intrusion convolution extrusion protrusion involution unproven locution obtrusion preclusion conclusion execution communion diminution prostitution attribution transfusion destitution contusion elocution nonunion irresolution malocclusion distribution constitution institution substitution restitution retribution antipollution lilliputian contribution counterrevolution redistribution reconstitution circumlocution electrocution