Here's what rhymes with execration.
                        
                        
                    
                                creation  nation  oration  aeration  elation  vexation  relation  situation  duration  location  separation  station  variation  declaration  expectation  immigration  migration  rotation  sensation  violation  decoration  fixation  recreation  segregation  vibration  causation  cessation  emigration  federation  narration  veneration  affectation  escalation  hydration  iteration  ablation  coloration  cremation  dilation  education  operation  formation  generation  circulation  corporation  foundation  integration  occupation  radiation  regulation  configuration  correlation  elevation  exploration  inflation  innovation  isolation  liberation  revelation  salvation  taxation  acceleration  allocation  alteration  assimilation  celebration  degradation  excitation  hesitation  imitation  inclination  irrigation  irritation  notation  quotation  saturation  simulation  speculation  temptation  vacation  valuation  vegetation  ventilation  accusation  affiliation  aggregation  annexation  aviation  desolation  exaggeration  excavation  expiration  filtration  graduation  incubation  insulation  mutation  negation  oscillation  probation  starvation  toleration  vocation  aberration  adoration  allegation  appellation  castration  citation  consecration  coronation  donation  emulation  exaltation  exclamation  exhortation  exportation  fibrillation  gestation  inhalation  innervation  ovulation  reclamation  reparation  sedation  stagnation  summation  ulceration  visitation  information  application  consideration  examination  explanation  association  civilization  cooperation  evaluation  legislation  preparation  reputation  activation  admiration  calculation  cultivation  deviation  exploitation  illustration  indication  inspiration  invitation  limitation  obligation  realization  restoration  stimulation  agitation  alienation  aspiration  collaboration  congregation  delegation  designation  dissertation  estimation  frustration  implication  indignation  inflammation  initiation  installation  medication  meditation  oxidation  penetration  plantation  reservation  resignation  respiration  affirmation  animation  annihilation  approbation  attenuation  authorization  calibration  civilisation  coagulation  compilation  consolation  dedication  deprivation  derivation  desperation  dilatation  dissipation  distillation  elaboration  evacuation  evaporation  fabrication  fascination  habitation  importation  incarnation  irradiation  litigation  maturation  mediation  moderation  modulation  ordination  realisation  reformation  replication  validation  alternation  augmentation  automation  bifurcation  cancellation  capitulation  conciliation  confederation  conflagration  connotation  constellation  culmination  damnation  dehydration  deputation  divination  elongation  fluctuation  gravitation  imputation  inauguration  interpolation  intimation  invocation  liquidation  perforation  recitation  refutation  relocation  renovation  revocation  sanitation  segmentation  stipulation  usurpation  vaccination  population  combination  concentration  conversation  imagination  investigation  observation  publication  translation  adaptation  appreciation  conservation  formulation  motivation  orientation  preservation  accommodation  arbitration  computation  confirmation  consultation  continuation  coordination  deformation  degeneration  destination  domination  elimination  illumination  incorporation  navigation  negotiation  nomination  proclamation  propagation  reconciliation  regeneration  registration  relaxation  termination  assassination  colonization  complication  deliberation  disintegration  dislocation  dissemination  dissociation  fermentation  humiliation  infiltration  ionization  localization  polarization  retaliation  retardation  socialization  specialization  verification  abbreviation  amputation  authentication  commendation  confiscation  conformation  consternation  constipation  consummation  delineation  demarcation  deportation  deregulation  devaluation  devastation  elucidation  enumeration  eradication  extermination  fertilization  germination  immunization  inoculation  interrogation  intimidation  intonation  masturbation  menstruation  perspiration  perturbation  provocation  punctuation  refrigeration  regurgitation  sterilization  subjugation  synchronization  vindication  visualization  organization  communication  interpretation  classification  determination  presentation  representation  accumulation  compensation  demonstration  differentiation  discrimination  organisation  anticipation  appropriation  condemnation  confrontation  consolidation  contemplation  depreciation  deterioration  emancipation  manifestation  manipulation  precipitation  proliferation  qualification  recommendation  specification  utilization  articulation  certification  clarification  condensation  denomination  fragmentation  generalization  globalization  gratification  intoxication  mobilization  preoccupation  ratification  remuneration  signification  sophistication  stabilization  subordination  unification  adjudication  amalgamation  calcification  categorization  centralization  crystallization  denunciation  dispensation  duplication  hybridization  implantation  inactivation  prolongation  renunciation  repudiation  resuscitation  sedimentation  simplification  urbanization  utilisation  administration  participation  transformation  implementation  justification  modification  transportation  approximation  characterization  contamination  documentation  rehabilitation  amplification  experimentation  liberalization  modernization  notification  optimization  privatization  pronunciation  purification  argumentation  capitalization  excommunication  magnetization  magnification  mortification  nationalization  normalization  ornamentation  polymerization  rationalization  supplementation  identification  multiplication  reorganization  stratification  conceptualization  decentralization  democratization  diversification  hospitalization  instrumentation  intensification  personification  quantification  standardization  industrialization  transplantation  misrepresentation  Words that almost rhyme with execration
haven  basin  hasten  equation  occasion  evasion  invasion  persuasion  laden  layman  laymen  taken  pagan  shaken  bacon  maiden  shaman  patron  awaken  straighten  salesman  contagion  forsaken  tradesmen  mistaken  statesman  overtaken  undertaken