加担

1. Origins, structure, and basic meaning

• Structure: 加担 (かたん) is an action noun, used with する, for joining and assisting wrongdoing or another person’s scheme.
• Basic usage: 不正へ加担しない describes checking details to avoid involvement in wrongdoing, while 企みに加担した人物 modifies a person who helped a friend’s scheme.

2. Common pitfalls and similar expressions

• Object of involvement and negative implication
  • Both 不正へ加担する and 企みに加担する mean lending support to a problematic act. The term should not be weakened to neutral cooperation or mere presence.