The suffix -ago denotes which meaning?

• A. Abnormal condition, disease
• B. Pertaining to
• C. Condition of
• D. Process

Answer: (A)

The suffix -ago indicates a disease or abnormal condition. In medical terms, this ending is used to name a pathological state rather than describe a trait, origin, or action. So it best fits the meaning of an abnormal condition or disease. The other options describe different suffix functions—pertaining to is usually shown by endings like -al or -ic, a condition of by endings such as -ia or -osis, and a process by endings like -ation—so they don’t convey the disease/state sense that -ago does.