The work and/or results of betraying
- the quality of aiding an enemy
- an act of deliberate betrayal
- The act and/or outcome of betraying.
1816; from betray + -al (2). Earlier in the same sense were betrayment (1540s), betraying (late 14c.).
(letter.) The act or perhaps the results of betraying.
Any resentment that lingered from his betrayal melted away at the sight of what he'd been through to save her.