Repel (verb)

1. Force (something) to move away or back.
2. Resist the actions or effects of (something).
3. Repulse or reject with distaste or abhorrence.

Origin:

Late middle english: from latin repellere, from re- (expressing intensive force) + pellere 'to drive'. the original sense was 'drive back', later 'repel an attack'.

Examples:

1. The soldiers repelled the enemy attack.
2. She was trying to repel his advances.
3. The paint repels water.
4. The city was surrounded by high walls to repel invaders.
5. The new law aims to repel corruption in the government.