treasonous

[ tree-zuh-nuh s ]
/ ˈtri zə nəs /

adjective

Origin of treasonous

First recorded in 1585–95; treason + -ous
Related formstrea·son·ous·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for treasonous

Word Origin and History for treasonous

treasonous


adj.

mid-15c., from treason + -ous. Related: Treasonously.

Online Etymology Dictionary, © 2010 Douglas Harper