loyalty
n. C / Un. the quality of staying faithful to a person, group, or idea. When you have this, you support someone even when things get difficult.
n. a strong feeling of support or allegiance to a person, institution, or set of beliefs. Often involves a sense of duty or emotional attachment that persists through challenges.
His loyalty to his friends is very strong.
The company rewards customer loyalty by offering discounts to people who have shopped there for years.
In many classic tragedies, the protagonist is torn between their loyalty to the crown and their personal sense of justice, leading to an inevitable moral collapse.
From Middle English loialte, borrowed from Old French loialte, loiauté (Modern loyauté) from loial + -té, equivalent to loyal + -ty.
Uncountable when referring to the abstract quality; countable when referring to specific instances of faithful behavior or competing allegiances.