One entry found for traitor.

Main Entry: trai·tor
Pronunciation: trt-r
Function: noun
Etymology: Middle English traitre "traitor," from early French traitre (same meaning), from Latin traditor (same meaning), derived from tradere "to hand over, betray" --related to TREASON --see Word History at TREASON
1 : one who betrays another's trust or is false to an obligation or duty
2 : one who commits treason