to weaken the cottage, confidence, self-discipline etc of (e.g. an army)

depress, unnerve

to upset the calmness or confidence of (a person)

shake up; confuse

to cause (a discussion, speech, flow of something etc) to be stopped or be in a state of disorder

upset, disorganize

to know (something) in advance

anticipate, predict

a plan, idea etc that cannot happen or be successful

think about deeply and theorize

to say, tell, something in advance

express an outcome in advance

a question or problem that is difficult to understand or answer; a game, toy etc designed to test a person's knowledge, skill or patience; to cause (a person) to become confused, worried (about the solution to a problem)

baffle, confuse

to think, consider, form opinions (without having complete knowledge); to buy and sell goods, shares etc with the hope of profit from changes in their market value

think about deeply and theorize

to cause (a person) to lose self-control, power of decision, courage

upset, intimidate

to cause (a person) to become troubled, anxious or uncertain

bother, upset