primum mobile /prīˈməm mōˈbi-lē, mobˈi-lē or prēˈmŭm mōˈbi-le/

1. In medieval astronomy, the outermost of the revolving spheres of the universe, carrying the others round in 24 hours
2. Any great source of motion

• ducal
• ducally
• ducat
• ducatoon
• ducatoons
• ducats
• ducdame
• duce
• duces
• Duchenne
• Duchenne muscular dystrophy
• duchess
• duchesse
• duchesse cover
• duchesse lace
• duchesse potatoes
• duchesses
• duchesse set
• duchesse sets
• duchies
• duchy
• duchy court
• duchy courts
• duck
• duck and dive