A more thorough explanation:

Dyet is a word that means the same thing as diet. Diet has three meanings:

1. A plan for what you eat and drink, especially to improve your health or lose weight.
2. A meeting of a governing body, like a national assembly, to make decisions about laws, taxes, and war.
3. A day in court when a duty is performed, like a trial or a plea.

For example, a person might go on a diet to lose weight. The German empire had a diet to make decisions about their country. In Scottish law, there are two diets: the pleading diet and the trial diet.

These examples show how diet can have different meanings depending on the context.