谗臣 (讒臣) chánchén
chánchén
noun
a slanderous official
Domain: Literary Chinese 文言文
Notes: For example, in the 漢書 “Book of Han”, volume 95 by 班固 Ban Gu 32-92 CE (reworded from tr. Wylie 1880, p. 69; Guoyu '讒臣')