treason


Concise Oxford English Dictionary © 2008 Oxford University Press:
treason /ˈtriːz(ə)n/
noun
  • 1 (also high treason) the crime of betraying one's country, especially by attempting to kill or overthrow the sovereign or government.
  • 2 (petty treason) historical the crime of murdering a master or husband.
– derivatives
treasonous adjective.
– origin ME: from Anglo-Norman Fr. treisoun, from L. traditio(n-), from tradere ‘hand over’.
'treason' also found in these Oxford entries:

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