Which verb means to drain of energy or vigor?

• A. Enervate
• B. Cursory
• C. Didactic
• D. Disparage

Answer: (A)

To enervate means to drain of energy or vigor—a verb that describes weakening someone physically or mentally.

This fits best because it directly conveys the act of draining strength, leaving a person or group exhausted or less energized. You can see it in contexts like a long illness, a grueling workout, or oppressive heat that enervates athletes or workers.

The other words don’t capture that sense. Cursory describes something done quickly and without thoroughness, not the draining of energy. Didactic refers to teaching or moralizing—focused on instruction, not on weakening or tiring. Disparage means to belittle or devalue someone, which is about opinion or insult, not about reducing energy.