Here's what rhymes with petilus.
                        
                        
                    
                                talus  bibulous  fistulous  Words that almost rhyme with petilus
mullahs  duchess  dullness  dulness  piteous  bulbous  pumice  tapas  pashas  justice  buckets  buttocks  fulness  toughness  baseness  bloodless  buttress  puppets  stasis  doublets  luckless  cutlass  loveless  buffets  ductless  dumbness  fungous  magus  ruckus  compass  indulgence  colourless  fungus  oneness  roughness  couplets  numbness  rashness  stomachs  justness  lameness  nuggets  effulgence  hummocks  pedants  bumptious  couscous  covets  erogenous  rumpus  abundance  judgments  encompass  inductance  judgements  muskets  trumpets  wondrous  cements  lustrous  repugnance  cumbrous  wantonness  alumnus  bluntness  druggists  incubus  numinous  smugness  sibilants  suitableness  substance  reluctance  sumptuous  neuritis  robustness  abruptness  abutments  discussants  adjustments  conductance  incumbents  encumbrance  hundredths  unrighteousness  incumbrance  resultants  agreeableness  rambunctious  circumference  consultants  reasonableness  superabundance  overabundance  overindulgence  remonstrance  readjustments  unreasonableness