TREASON
NOUNS
► LESE-MAJESTY treason; any offense against the sovereign authority → 1536
► PERDUELLION high treason → 1533 Roman & Sc. law usage
► PERDUELLISM high treason → 1656 obs.
► SWIKEDOM deceit, fraud; treachery, treason → c893 obs.
► SWIKEHEAD deceit, fraud; treachery, treason → a1250 obs.
Lexicophilia 