Destabilize (verb)

1. To cause a system, organization, or situation to become less stable or secure.
2. To make something or someone less stable or secure.
3. To weaken or undermine the stability of something or someone.

Origin:

From the prefix "de-" meaning "reverse of" or "removal of" and "stabilize" meaning "to make stable", literally meaning "to remove stability from".

Examples:

1. The political turmoil in the country destabilized the economy.
2. The new policy was meant to destabilize the opposition.
3. The terrorist attack destabilized the government.
4. The constant criticism destabilized the athlete's confidence.
5. His actions destabilized the team's morale.