Here's what rhymes with orsythia.
                        
                        
                    
                                forsythia  Words that almost rhyme with orsythia
cerevisiae  trivia  zinnia  tibia  linea  tibiae  arrhythmia  chickpea  listeria  criteria  diphtheria  insignia  asphyxia  materia  bulimia  wisteria  deliria  bacteria  cafeteria  bougainvillea  equilibria