Perturb (verb)

1. Disturb the equilibrium or normal functioning of (a system or process).
2. Disturb the peace of mind of; make anxious or upset.
3. To make a small change to the orbit of a celestial body, causing it to deviate slightly from its predicted position.

Origin:

Late 16th century: from latin perturbare, from per- "completely" + turbare "to confuse".

Examples:

1. The storm perturbed the delicate ecosystem of the coral reef.
2. The news of the accident perturbed her greatly.
3. The asteroid was perturbed by the gravity of Jupiter.
4. The sudden loud noise perturbed the sleeping baby.
5. The new regulations perturbed the smooth functioning of the company.