LATIN DICTIONARYLexicon Latīnum
interjection

eu

eu
Classical[ˈɛu̯]Ecclesiastical[ˈɛːu̯]

Meaning

  1. bravo! well done!

eu, interj., = εὖ,
I. well! well done! bravo! an exclamation of joy or approbation, Plaut. Most. 1, 4, 26; Ter. Phorm. 3, 1, 14; Plaut. Mil. 4, 4, 10; Ter. Eun. 1, 2, 74; Hor. A. P. 328.—Esp.: Eu Hercle! Plaut. Men. 5, 1, 31; id. Rud. 3, 5, 41; id. Most. 3, 1, 58 al. Cf. Hand, Turs. II. p. 609 sq.; and see euge.

Origins

Compare Ancient Greek εὖ (eû, “well”, adverb).

Quick answers

What does eu mean in Latin?
eu, a interjection, means “bravo! well done!”.
How do you pronounce eu?
In classical Latin, [ˈɛu̯]; in ecclesiastical (church) Latin, [ˈɛːu̯].