mob, mot, mov = move

automobile (n) a self-propelled passenger vehicle that moves

demote (v) to move down in grade, rank, or status

locomotion (n) the ability to move from place to place

mobile (adj) capable of moving or being moved

mobility (n) the quality or state of being able to move freely

mobilize (v) to coordinate; to move people things around for a purpose

motion (n) the act or process of changing place or position; the ability or power to move

motivate (v) to do something that makes a person move into action

promote (v) to raise or move to a higher grade, rank, or job; to advocate

removal (n) the act of moving something away