Zeal·ous a.
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. Filled with religious zeal. [Obs.]
-- Zeal*ous*ly, adv. -- Zeal*ous*ness, n.
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zealously
adv : in a zealous manner; "she worked zealously to raise funds
for the literacy project"