To determine the meaning of the word "apathy," we can break down its components. The prefix "a-" is derived from the Greek word root "pathos," which means "feeling" or "emotion." When the prefix "a-" is added to "pathos," it generally indicates negation or absence, implying "none" or "not." Therefore, based on this understanding, the most likely meaning of the word "apathy" is "lack of feeling" or "absence of emotion." It refers to a state of indifference, disinterest, or lack of concern.