Noun
One who, or that which, betrays.
Source: Webster's dictionaryBetrayal does that -- betrays the betrayer. Erica Jong
Under patriarchy, every woman's son is her potential betrayer and also the inevitable rapist or exploiter of another woman. Andrea Dworkin
A trustworthy person does not betray you, but you consider the betrayer to be trustworthy. Ali al-Rida
Law of the jungle. The betrayee gets to eat the betrayer. --Dante Pontis. Sherrilyn Kenyon
Memory is a great betrayer. Anaïs Nin
Woe to him whose betrayer sits at his table. Irish Proverb