PREFIX
com - with, together
im - in, into, not
pro - for, before, forward

ROOT
mob/mot/mov - move

SUFFIX
-able - able to be
-ile - of, related to
-ion - state, quality, act
-ity - state, quality, act

WORDS AND DEFINITIONS
commotion - the scene of noisy confusion or activity
immobile - motionless; unable to move
mobility - relating to the quality of being able to move
promotion - an advancement in rank or position
removable - able to be taken or carried away