zealous

[zel-uh s]
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Origin of zealous

From the Medieval Latin word zēlōsus, dating back to 1520–30. See zeal, -ous
Related formszeal·ous·ly, adverbzeal·ous·ness, nounnon·zeal·ous, adjectivenon·zeal·ous·ly, adverbnon·zeal·ous·ness, nounun·der·zeal·ous, adjectiveun·der·zeal·ous·ly, adverbun·der·zeal·ous·ness, nounun·zeal·ous, adjectiveun·zeal·ous·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018


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British Dictionary definitions for zealous

zealous

adjective
  1. filled with or inspired by intense enthusiasm or zeal; ardent; fervent
Derived Formszealously, adverbzealousness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for zealous
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1520s, from Medieval Latin zelosus (source of Italian zeloso, Spanish celoso), from zelus (see zeal). Related: Zealously, zealousness.

Online Etymology Dictionary, © 2010 Douglas Harper