The phrase "my pleasure" is a polite way of responding to someone who has thanked you for something. It expresses that you were happy to help or do something for them and that it was no trouble at all. It conveys goodwill and friendliness, indicating that the action was enjoyable for the person who performed it.
The phrase "my pleasure" is derived from the combination of "my," indicating personal ownership or experience, and "pleasure," which comes from the Latin word "placere," meaning "to please." The phrase has evolved as a courteous response in English-speaking cultures since the 19th century.
A: Thank you for helping me with my homework!
B: My pleasure! I'm glad I could assist you.
A: I really appreciate the dinner invitation.
B: My pleasure! It was lovely having you over.
A: Thanks for picking up my groceries!
B: My pleasure! I enjoyed the little outing.
A: I can't thank you enough for your guidance.
B: My pleasure! I’m happy to help whenever you need.