Traitor
来自Big Physics
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Middle English: from Old French traitour, from Latin traditor, from tradere ‘hand over’.
wiktionary
From Middle English traitor, traitour, traytour, from Old French traïtor (French traître), from Latin trāditor.
etymonline
traitor (n.)
c. 1200, "one who betrays a trust or duty," from Old French traitor, traitre "traitor, villain, deceiver" (11c., Modern French traître), from Latin traditor "betrayer," literally "one who delivers," agent noun from stem of tradere "deliver, hand over," from trans- "over" (see trans-) + dare "to give" (from PIE root *do- "to give"). Originally usually with a suggestion of Judas Iscariot; especially of one false to his allegiance to a sovereign, government, or cause from late 15c. Compare treason, tradition.
