The term being sought, based on the problem statement, is "Custom." A usage implies repeated acts, and a custom is the law or general rule that emerges from such repetition.
Customs gain their authority by being incorporated into the law and are binding regardless of any agreements or explicit consent by involved parties.
| Habit | A regular practice or tendency |
| Law | A formally recognized rule established by an authority |
| Custom | A traditional norm arising from repeated acts and integrated into legal systems |
| Fiction | Something not real but imagined or invented |