select · wash

1. Origins, structure, and basic meaning

• Structure: 汰 has 7 strokes; in 淘汰, it relates to selection and elimination.
• Basic usage: 沙汰 is read さた, and 淘汰 is read とうた.

2. Common pitfalls and similar expressions

• A decision and news
  • 家臣への沙汰 refers to a decision concerning a retainer.
  • 音沙汰がない means there has been no news or word.
• What remains and what is eliminated
  • 自然淘汰によって残った means surviving through natural selection.
  • 市場から淘汰された means being eliminated from the market, focusing on what was displaced.