treasonous

English

Etymology

Etymology tree

English treason

Proto-Indo-European *h₃ed-

Proto-Indo-European *-os

Proto-Indo-European *h₃édosder.?

Proto-Italic *-ŏ̄dsos?

Old Latin -ōssus

Latin -ōsus

Old French -usbor.

Middle English -ous

English -ous

English treasonous

From treason + -ous.

Adjective

treasonous (not comparable)

1. Like or in the way of treason.

   Synonyms: dastardly, perfidious, traitorous; see also Thesaurus:treacherous

   His treasonous actions earned Benedict Arnold eternal scorn.

Derived terms

• nontreasonous
• semitreasonous
• treasonously
• untreasonous

Anagrams

• outreasons