1. left suddenly or secretly, especially to avoid trouble or responsibility
Usage: past tense of decamp
2. broke up a camp and moved away
Usage: military or camping context

Examples

• The thieves decamped before the police arrived.
• When the scandal broke, the politician decamped to his country house.
• The army decamped at dawn and marched toward the enemy.
• The camping group decamped early to avoid the storm.
• After the party ended badly, most guests decamped quickly.
• The circus decamped overnight, leaving only trampled grass behind.