What is the meaning of Congratulate?

To express one’s sympathetic pleasure or joy to the person(s) it is felt for; to felicitate.

To consider oneself fortunate in some matter.

inflection of congratulare:

1. second-person plural present indicative
2. second-person plural imperative

second-person plural present indicative

second-person plural imperative

feminine plural of congratulato

vocative masculine singular of congrātulātus

second-person singular voseo imperative of congratular combined with te

Source: wiktionary.org