Zeal
(n.) Passionate ardor in the pursuit of anything; eagerness in favor of a person or cause; ardent and active interest; engagedness; enthusiasm; fervor.
(n.) A zealot.
(v. i.) To be zealous.
Similar Words:
Miszealous New Zealand Overzeal Overzealous Zeal Zealant Zealed Zealful Zealless Zealot