Here's what rhymes with osis.
                        
                        
                    
                                stasis  Words that almost rhyme with osis
busses  rushes  blushes  thrushes  discusses  compasses  justice  duchess  baseness  piteous  pumice  talus  tapas  compass  buckets  buttocks  fulness  fungus  muskets  oneness  roughness  toughness  buttress  dullness  dulness  lustrous  numbness  puppets  rashness  bulbous  justness  lameness  luckless  nuggets  cutlass  hummocks  loveless  unctuous  substance  colourless  wondrous  bloodless  cements  couplets  stomachs  cumbrous  doublets  alumnus  incubus  numinous  pedants  smugness  abundance  judgments  encompass  judgements  sumptuous  trumpets  neuritis  robustness  wantonness  bluntness  druggists  effulgence  fistulous  adjustments  reluctance  indulgence  inductance  repugnance  abruptness  abutments  hundredths  unrighteousness  circumference  conductance  incumbents  remonstrance  encumbrance  incumbrance  resultants  consultants  readjustments  reasonableness  superabundance  unreasonableness