- Expend
v. to use up (as in energy or money)
Be careful not to expend all your energy in the first half of a marathon.
- Disparage
v. to belittle or speak down to
A good boss is stern but never disparageshis or her employees.
- Undermine
v. to weaken or subvert (usu. gradually or secretly)
Parents should take care not to constantly undermine their children.
