疲れ果てる

1. Origins, structure, and basic meaning

• Structure: Spelling: 疲れ果てる. Reading: つかれはてる. Core meaning: to be exhausted; to wear oneself out.
• Basic usage: Representative examples: 一日中歩き回ってすっかり疲れ果てた / 疲れ果てる前に作業を切り上げよう.

2. Common pitfalls and similar expressions

• Exhaustion to the limit
  • 疲れ果てる goes beyond ordinary 疲れる and describes being so exhausted that almost no energy remains. Preserve that difference in degree.