| A | B |
| psych | mind |
| psychiatry | medical treatment of the mind |
| psychology | study of the mind |
| psychic | a person or condition of using the brain well |
| therapy | cure |
| hydrotherapy | cure by water (whirlpools; hot tubs) |
| therapist | one who helps cure people |
| physio | nature, natural |
| physical | having to do with things in nature (like the human body) |
| physics | the study of the physical nature of things |
| logue | word, speech, or reason |
| logic | the science of using reason |
| catalogue | the listing of words |
| monologue | a speech by one person |
| tax | systematic arrangment |
| taxonomy | the science of classification |
| syntax | the arrangment of words used regulary |
| tactics | the plan of action (as in military tactics) |
| derm | skin |
| dermatology | the study of skin |
| dermatoplasty | use of skin grafts in plastic surgery |
| taxidermist | one who stuffs animals |
| epidermis | the outer, protective layer of skin |
| hypodermic | an injection under the skin |