zeal

/ˈzēl/

Middle English zele, from Late Latin zelus, from Greek zēlos

noun

  1. eagerness and ardent interest in pursuit of something : fervor

… they took office with an undisguised zeal to do everything differently …

passion fervor ardor enthusiasm zeal mean intense emotion compelling action. passion applies to an emotion that is deeply stirring or ungovernable. fervor implies a warm and steady emotion.

idiom

  1. great enthusiasm

He spoke with missionary zeal about the project.