任せる

1. Origins, structure, and basic meaning

• Structure: 任せる is read as まかせる and is an ichidan transitive verb meaning to entrust a task, decision, or responsibility to someone suited to handle it.
• Basic usage: In 献立は母に任せる, the entrusted matter is the topic; in 修理を職人に任せる, the task takes を and the responsible person takes に.

2. Common pitfalls and similar expressions

• Task and responsible person
  • を marks the work or decision, while に marks the person asked to handle it.
• Not abandonment
  • 任せる transfers discretion and responsibility to someone; it does not mean leaving the matter unattended.