命懸け

1. Origins, structure, and basic meaning

• Structure: In 命懸け (いのちがけ), life 命 and staking 懸け combine to express risking one's life.
• Basic usage: 命懸けで adverbially describes acting with one's life at stake, while 命懸けの modifies an effort or rescue carrying that risk.

2. Common pitfalls and similar expressions

• Degree of risk and grammatical form
  • It is stronger than merely working hard.