鍛錬

1. Origins, structure, and basic meaning

• Structure: 鍛錬 (たんれん) is disciplined repetition that trains body, mind, or skill. It appears as a continuing practice and its accumulated effect.
• Basic usage: A swordsman trains every morning; daily discipline develops dependable technique.

2. Common pitfalls and similar expressions

• Training maintained each day and skill produced by accumulation
  • 鍛錬を続ける is the repeated process, while 日々の鍛錬 is the cause of improvement. The word stresses sustained discipline beyond a single practice session.