betrayer
bet·rayer
noun
1.
one who reveals confidential information in return for money
2.
Origin
From betray + -er.
Related words
Narrower terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.