| A | B |
|---|
| ac- | to, toward, near |
| de- | from, away, down, apart; not |
| di- | apart, away; not |
| pro- | for, before, forward |
| re- | back, again |
| celer | fast |
| gress | step |
| -ate | to make, to act; one who, that which |
| -ation | an action or process |
| -ion | an action or process; state, quality act |
| progress | a movement forward or onward; improvement |
| accelerate | to increase the speed of |
| digress | to depart from the main issue, subject, etc |
| decelerate | to reduce the speed of |
| regress | to go back to an earlier state |
| acceleration | the action or process of increasing the speed of |
| deceleration | the action or process of reducing the speed of |
| digression | a departure from the main issue, subject, etc. |
| progression | the process or action of moving forward |
| regression | a movement back to an earlier state |
| com- | together |
| avi/avi(a) | bird |
| memor | remember |
| -able | able to be |
| (i)-al | like, related to; an action or process |
| -ary | that which; someone or something that belongs to; of, related to; one who |
| -ate | to make, to act; one who, that which |
| -ation/(iz)-ation | an action or process |
| (at)-or | one who, that which; condition, state, activity |
| -ize | to make, to act |
| -trix | feminine |
| -y | state of, quality, act; body, group |
| aviary | a large enclosure in which birds are kept |
| aviatrix | a woman airplane pilot |
| aviator | one who flies an airplane; a pilot |
| aviation | the act or practice of flying airplanes, helicopters, etc. |
| memory | an ability to retain knowledge; an individual's stock of retained knowledge |
| memorial | related to remembering a person or event |
| memorize | to learn something so well that you are able to remember it perfectly |
| memorable | able to be remembered; worth remembering |
| memorization | the process of committing something to memory |
| commemorate | to honor the memory of, as by a ceremony |
