食欲

1. Origins, structure, and basic meaning

• Structure: The physiological noun 食欲 (しょくよく) means appetite, the desire to eat.
• Basic usage: Loss of appetite is 食欲がない, while appetite arising naturally is 食欲が湧く.

2. Common pitfalls and similar expressions

• Desire to eat
  • It is not the amount actually eaten; it is the state of wanting and being ready for food.