Excoriation rhymes with:
alliteration, alternation, brutalization, circulation, claymation, conceptualization, decimation, deterioration, homogenization, immolation, incineration, oversimplification, playstation, reeducation, reintegration, substation, syncopation, truncation, workstation
Excoriation sounds like:
egerton, exaggeration, excretion, exertion, exhortation