Here's what rhymes with ducatus.
Words that almost rhyme with ducatus
uveitis spookiness kookiness luminous ruinous gratuitous ludicrous bituminous luminance mutinous glutinous humanise duelists ruefulness tunefulness glutenous usefulness voluminous truthfulness albuminous cumulus ruminants ruthlessness uselessness humanness youthfulness rootlessness pugilists gruesomeness dehumanise lutenists scrupulous humanists lubricants fruitfulness fruitlessness fumigants nutriments illusionists untruthfulness humourlessness unscrupulous communicants