English for Today by Ganiu Abisoye Bamgbose (Dr GAB)
Complement, Compliment, Compliments
Complement: a thing that contributes extra features to something else in such a way as to improve or emphasize its quality: Nouns function as complement to subjects.
Compliment: a polite expression of praise or admiration: She paid me an enormous compliment.
Compliments: used as a seasonal greeting at Christmas or the New Year: Compliments of the season to you all!
GAB