traitorous

[ trey-ter-uhs ]
/ ˈtreɪ tər əs /

adjective

having the character of a traitor; treacherous; perfidious.
characteristic of a traitor.
of the nature of treason; treasonable: a traitorous act.

Origin of traitorous

1350–1400; Middle English treterous, traytrous < Old French traitreus; see traitor, -ous
Related forms
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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Word Origin and History for traitorous

traitorous


adj.

late 14c., apparently from Old French traitreus (mid-13c.), from traitor (see traitor).

Online Etymology Dictionary, © 2010 Douglas Harper