沃野

1. Origins, structure, and basic meaning

• Structure: 沃野, read よくや, is a noun for an expanse of fertile land.
• Basic usage: It describes terrain such as well-watered fields suitable for growing crops.

2. Common pitfalls and similar expressions

• The visible extent
  • 見渡す限りの沃野 means fertile fields extending as far as one can see.
• Result of a change
  • In 土地を沃野に変えた, the land is what was transformed and fertile fields are the result. を and に mark these different roles.