Reverse Dictionary: TRAITOR

ADJECTIVES
► JUDAS-LIKE  traitorous, treacherous; resembling Judas Iscariot → 1577
► JUDASLY traitorous → 1626 arch.
► PRODITORIOUS treacherous, traitorous, perfidious; apt to betray or reveal what is hidden or in the mind; apt to disclose or make known → c1475 obs. or arch.
► SWIKE deceitful; treacherous; traitorous → 1175 obs.

ADVERBS
► JUDAS-LIKE  traitorously, treacherously → 1569
► JUDASLY in the manner of Judas Iscariot; traitorously; with terrible treachery or betrayal → 1508

NOUNS
► QUARTERIZATION part of the punishment of a traitor, by dividing his body into four quarters → 1727-41 obs.

NOUNS – PERSON
► BENEDICT ARNOLD a traitor → Bk1989
► BLUE LIGHT a traitor → 1812 Amer. dial.
► DINGO a contemptuous term for a person; a cheat, a scoundrel, a traitor, a coward → 1928 Aust. sl.
► DOBBER an informant or traitor → 1895 Aust. sl.
► DOBBER-IN an informant or traitor → 1895 Aust. sl.
► DOG a traitor; one who is disloyal to associates → 1846 US & Aust. sl.
► FALSE-LOON a traitor → 1885 Eng. dial.
► FEATRIL a traitor; a deceitful person → Bk1900 Eng. dial.
► FINK a traitor; one who is disloyal to associates → 1894 US sl.
► GINK a traitor; an informer; a spy → 1906 US criminals’ sl.
► JACKET-REVERSER a turncoat → Bk1896 sl. 
► JUDAS a person who betrays his or her comrades or associates, frequently under the guise of friendship; a traitor, a betrayer → 1000
► LORDSWIKE a person who betrays his or her lord; a traitor → 1000 obs.
► MURDERER a traitor → 1390 obs.
► PREVARICATOR a person who betrays a cause or violates a trust; a renegade; a traitor → 1575 obs.
► PROTOTRAITOR a chief or principal traitor → 1576 obs.
► QUISLER a traitor to one’s country → 1940
► QUISLING a traitor to one’s country, a collaborationist, esp. during the Second World War → 1940
► QUISLINGIST a traitor to one’s country → 1940
► QUISLINGITE a traitor to one’s country → 1940
► RAT FINK a traitor; one who is disloyal to associates; someone who informs on you → 1964 sl., chiefly US
► SCISSOR-BILL one regarded as a traitor to his class or associates → 1913 Amer. dial.
► SNAKE a traitor, esp. an informant → 2006 African-American sl.
► SWIKE a deceiver; a traitor → 1000 obs. exc. Eng. dial.
► TRAITORESS a woman who is a traitor  → 1369
► TRAITRESS a woman who is a traitor → 1400
► TREASONER a traitor → 1861 Amer.
► WARLOCK an oath-breaker, a traitor → a1023 obs.

VERBS
► BETRAISE ► BETRAISH to be a traitor to; to be treacherous; to deceive the trustful or innocent → c1374 obs.
► TURN CAT IN THE PAN to turn traitor, to change sides → Bk1898 Eng. dial.