Disloyalty is a failure to stay faithful to somebody or something. Accused of disloyalty, an act of disloyalty, punish disloyalty.
It is judged against an expectation rather than a rule, which is why the charge is so often unfair: disloyalty is what somebody in power calls a disagreement. It is milder than treachery and heavier than mere criticism.
1noundisloyaltyA failure to stay faithful to somebody or something.
“The manager saw his star player's move to a rival team as an act of disloyalty.”
disloyalty is a failing.
Old French desloiaute is des-, meaning un-, plus loiaute, loyalty, from Latin lex, law.
Old French
desloiauté
English, today
disloyalty
Built from
From Old French desloiauté (Modern French déloyauté), from des- + loiauté (“loyalty”).
Etymology from Wiktionary, CC BY-SA