| A | B |
| -crypt- | hidden |
| encrypt | to convert into cipher--to convert a message into code |
| cryptic | mysterious; puzzingly short; Acting to hide or conceal |
| cryptography | secret writing; The encoding and decoding of messages |
| crypt | a room completely or partly underground, especially under the main floor of a church; a room or area in a large above-ground tomb |
| -ab- or -abs- | from, away, off |
| abscond | to depart in secret and hide |
| abstemious | restrained, especially in the consumption of food or alcohol |
| abstraction | the consideration of a thing or an idea without associating it with a particular example |
| abstruse | hard to understand; deep or complex |
| -ped- | child |
| pedagogy | the art or profession of teaching |
| encyclopedic | of or relating to an encyclopedia; Covering a wide range of subjects |
| pediatrician | a doctor who specializes in the diseases, development, and the care of children |
| pedant | a formal, unimaginative teacher; a person who shows off his or her learning |
| -trop- | turn or change |
| tropism | automatic movement by an organism unable to move about from place to place |
| entropy | decomposition of the matter of energy of the universe to an ultimate state of inactivity--chaos, randomness |
| heliotrope | any of a genus of herbs or shrubs having small white or purple flowers |
| psychotropic | acting on the mind |