A more thorough explanation:

Term: affidare
Definition: Affidare is a legal term that means to promise loyalty or faithfulness to someone, especially when it comes to a tenant pledging loyalty to their landlord.
Examples:

• When a tenant signs a lease agreement, they are affidaring their loyalty to the landlord.
• The knight affidared his loyalty to the king and promised to serve him faithfully.

These examples illustrate how affidare is used in a legal context to describe a promise of loyalty or faithfulness. In both cases, the person making the promise is pledging their loyalty to someone else, whether it be a landlord or a king.