[fuh-loh-nee-uh s]

Origin of felonious

1375–1425; felony + -ous; replacing late Middle English felonous < Anglo-French, Old French
Related formsfe·lo·ni·ous·ly, adverbfe·lo·ni·ous·ness, nounnon·fe·lo·ni·ous, adjectivenon·fe·lo·ni·ous·ly, adverbnon·fe·lo·ni·ous·ness, nounun·fe·lo·ni·ous, adjectiveun·fe·lo·ni·ous·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for feloniously

Historical Examples of feloniously

British Dictionary definitions for feloniously


  1. criminal law of, involving, or constituting a felony
  2. obsolete wicked; base
Derived Formsfeloniously, adverbfeloniousness, 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 feloniously



mid-15c. (implied in feloniously), from felony + -ous. Replaced felonous (mid-14c.) by c.1600. Felonly (c.1300) was another variation.

Online Etymology Dictionary, © 2010 Douglas Harper