horse chestnut

1. Origins, structure, and basic meaning

• Structure: 栃 has 9 strokes and refers to a horse-chestnut tree.
• Basic usage: 栃 is read とち, while 栃餅, a rice cake made with its nuts, is read とちもち.

2. Common pitfalls and similar expressions

• A tree and a material
  • 栃の板 is a board made from this tree. The tree name identifies the type of wood.
• The food name's components
  • In 栃餅, the first part identifies the nut ingredient, while 餅 identifies the food as a rice cake.