D defs.my
Entry 2 senses Webster, 1913

Zealous

/zĕl'-əs/ · Zeal·ous · IPA /ˈzɛləs/
01 a. Filled with, or characterized by, zeal; warmly engaged, or ardent, in behalf of an object.
  1. 1.
    Filled with, or characterized by, zeal; warmly engaged, or ardent, in behalf of an object.
    “He may be zealous in the salvation of souls.” — Law.
  2. 2.
    Filled with religious zeal.[Obs.]