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US /ˈtɹeɪtɚ/ UK /ˈtɹeɪtə(ɹ)/
Freq #3198

Meanings

  1. 1
  2. 2

Thesaurus

Synonyms
1 noun · a person who betrays their... betrayerdefectorturncoatquisling
2 noun · someone who betrays a... backstabberbetrayerdouble-crossersnakerat
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Word family
Forms traitors
Derived forms traitordomtraitorhoodtraitorishtraitorizetraitorlesstraitorliketraitorlytraitoroustraitorshiptraitorsome

Simplified etymology

Traitor entered English in the Middle English period and comes from the same Latin root as tradition: tradere, “to deliver” or “hand over,” formed from trans-, “across,” and dare, “to give.” Its sense developed from the idea of someone who hands something over to an enemy.

Etymology

From Middle English traitor, traitour, traytour, from Old French traïtor (French traître), from Latin trāditor. Displaced native Middle English swike from Old English swica (“traitor”), and Middle English proditour and traditour borrowed directly from Latin. The general Old English word denoting "traitor" was lǣwa or lǣwend. Doublet of traditor.

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