Here's what rhymes with decretum.
teatime arboretum Words that almost rhyme with decretum
cretin region freedom beaten legion phaeton wheaten neaten didn deepen needn sweeten cheapen collegian unbeaten steepen overeaten rerum diesem cerium threesome chiefdom labium cilium fiefdom sheikdom sheikhdom museum hominum imperium encomium capsicum samarium solarium coliseum mausoleum francium trapezium protactinium
