Here's what rhymes with optior.
                        
                        
                    
                                Words that almost rhyme with optior
order  author  offer  copper  honor  altar  alter  armor  armour  ardor  chopper  harsher  hopper  otter  pauper  poplar  washer  alder  arbor  archer  auger  arbour  augur  shopper  water  father  former  longer  daughter  larger  proper  border  corner  doctor  charter  dollar  farmer  horror  lawyer  shorter  bother  collar  foster  harbor  harbour  harder  marker  posture  torture  conquer  darker  martyr  mortar  parlor  wander  warmer  barber  barter  bomber  fodder  hotter  locker  mater  parlour  ponder  porter  robber  sharper  soccer  softer  solder  taller  yonder  caller  calmer  conjure  pallor  potter  rocker  roster  saucer  somber  stopper  talker  walker  borer  charger  falter  garner  garter  halter  larder  lodger  mourner  tartar  torpor  warder  watcher  boarder  carter  charmer  coffer  collier  dormer  dropper  fonder  forger  hawser  holler  jobber  knocker  lager  launcher  logger  saunter  sorter  smaller  quarter  broader  farther  partner  scholar  monster  slaughter  coarser  prosper  starter  lobster  smarter  toddler  blocker  boxer  carver  coauthor  cobbler  golfer  plotter  proffer  solver  disorder  stronger  departure  improper  reporter  performer  recorder  sponsor  supporter  vigour  reformer  catarrh  dishonor  importer  impostor  informer  rigour  squalor  squander  squatter  helicopter  revolver  exporter  indorser  restorer  explorer  underwater  saltwater  transformer  transporter