feelings of allegiance
"The soldier's loyalty to his commander remained unshaken even during the most difficult battles."
the act of binding yourself (intellectually or emotionally) to a course of action
"his long commitment to public service"
"they felt no loyalty to a losing team"
The state of being loyal; fidelity.
"Her unwavering loyalty to her friends remained strong even when they faced difficult times."
In plain English: Loyalty is being faithful and sticking with someone even when things get tough.
"Her loyalty to her friends never wavered even when they made mistakes."
The word loyalty entered Middle English as loialte from the Old French term for "faithfulness." It was formed by combining the root meaning faithful with a suffix denoting a state or quality.