請う

1. Origins, structure, and basic meaning

• Structure: 請う(こう) means asking someone for needed help, instruction, or similar assistance.
• Basic usage: The examples use 助言を請う and 教えを請う for seeking advice and instruction.

2. Common pitfalls and similar expressions

• A more formal request than 頼む
  • 頼む(たのむ) is widely used for everyday requests. 請う suits a respectful, formal request for something such as advice or guidance.