狂う

1. Origins, structure, and basic meaning

• Structure: 狂う（くるう） describes plans being disrupted or something becoming inaccurate in these examples.
• Basic usage: 予定が狂う means a schedule is disrupted; a clock that 狂う becomes inaccurate.

2. Common pitfalls and similar expressions

• An intransitive description
  • In 予定が狂う, the schedule itself goes awry. 予定を狂わせる describes something causing the schedule to go awry.