traicionar
betray
treason
betrayal of one's country
+
-ar
verb suffix
Traicionar means to betray and can be thought of as treason0 + -ar1 (verb suffix1), like committing an act of treason.
verb
- betrayTo betray or be disloyal to someone or somethingNunca pensé que mi mejor amigo me traicionaría. // I never thought my best friend would betray me.