Use 'enervate' when describing physical exhaustion or weakening, not just a lack of enthusiasm or boredom.

Physical Impact

'Enervate' can be used metaphorically for things that cannot literally be tired, like an economy or a policy.

Metaphorical Use

'Enervate' carries a negative connotation, implying a reduction of effectiveness or strength.

'Enervate' implies a gradual or insidious weakening, often from an internal cause or influence.

It can describe the draining of emotional energy or motivation as well as physical strength.

'Enervate' can refer to the loss of strength over an extended period, not just a single event.