To keep a promise
Example: They keep a promise always
Definition
"To keep a promise" means to fulfill a commitment or assurance made to someone by acting in accordance with what was pledged, thereby maintaining trust and reliability in personal or professional relationships.
Etymology
The phrase "to keep a promise" combines the verb "keep," from Old English 'cepan' meaning to seize, hold, or observe, and "promise," from Latin 'promissum,' meaning a declaration or assurance. Together, they embody the concept of holding firmly to one's word.