"(man|woman) of {one's} word" の定義と意味

What is the origin of the idiom "man of one's word" and when to use it?

While the exact origin of the idiom "man of one's word" is unclear, it reflects the belief that a person's character and reputation are tied to their ability to honor their word. It highlights the value of trust and reliability in relationships and society. This phrase can be used in both personal and professional contexts.