Here's what rhymes with phrynium.
                        
                        
                    
                                cerium  labium  francium  museum  imperium  encomium  cilium  samarium  solarium  mausoleum  trapezium  coliseum  protactinium  Words that almost rhyme with phrynium
dn  zijn  paean  peon  lndian  chorion  ruffian  boolean  plebeian  protean  occafion  epicurean  rerum  diesem  teatime  freedom  hominum  chiefdom  threesome  fiefdom  sheikdom  sheikhdom  arboretum  capsicum