Prefix
re
what is back, again
decelerate
what is to reduce the speed of
to increase the speed of
what is accelerate
ac
What is to, toward, near
-ate
what is make, to act, one who, that which
progress
what is a movement forward or onward; improvement
the process or action of moving forward
what is progression
de
What is from, away, down, apart or not
gress
what is step
-ion
an action or process, state, quality, act
regression
what is a movement back to an earlier state
what is to go back to an earlier
regress
pro
what is for, before, forward
celer
what is fast
-ation
an action or process
acceleration
What is the action or process of increasing the speed of
the action or process of reducing the speed of
what is deceleration
di
what is apart, away, not
digress
what is to depart from the main issue, subject
a departure from the main issue, subject, etc
what is digression