Congratulate (verb)

1. To express praise or admiration for (someone's achievement or good fortune).
2. To express one's good wishes to (someone) on a particular occasion.

Origin:

From latin congratulatus, past participle of congratulari "to wish joy to".

Examples:

1. I would like to congratulate you on your graduation.
2. He was congratulated on his promotion by his colleagues.
3. She was congratulated on her new baby by her friends.
4. I would like to congratulate you on your new job.
5. The company congratulated the employee on their long service.