Here's what rhymes with essum.
                        
                        
                    
                                Words that almost rhyme with essum
session  cession  seven  heaven  lesson  lessen  resin  leaven  freshen  possession  aggression  eleven  accession  oppression  obsession  recession  secession  depression  impression  profession  succession  concession  confession  procession  regression  repression  suppression  digression  expression  compression  discretion  progression  intercession  concretion  dispossession  transgression  decompression  indiscretion  retrogression  venom  harem  denim  vellum  velum  seldom  welcome  emblem  rectum  septum  addendum  plenum  bedlam  spectrum  momentum  cerebellum  unwelcome  flagellum  referendum  antebellum  antiserum  interregnum