Final answer:
The word part '-trophy' means nourishment or development, used in medical terms to indicate the condition of tissues or organs.
Step-by-step explanation:
The word part that means nourishment or development is -trophy. This suffix is commonly used in medical and biological terms to indicate the nourishment, development, or function of tissues or organs.
Examples of words that include this suffix are atrophy, which means the wasting away or decrease in size of a body part, and hypertrophy, which signifies an increase in the volume of an organ or tissue due to the enlargement of its component cells.