treason

nouns

a crime that undermines the offender's government
high treason, lese majesty, treason
is derived from
treasonous
is derived from
treasonist
disloyalty by virtue of subversive behavior
subversiveness, traitorousness, treason
is derived from
treasonous
is derived from
treasonist
an act of deliberate betrayal
betrayal, perfidy, treachery, treason
is derived from
treasonist