verb
flag
To become weaker or less enthusiastic.
Our enthusiasm flags when the meeting stretches into its third hour.
Etymology
The weakening verb is associated with becoming limp or drooping. That loss of physical firmness extended to energy and enthusiasm losing their force; its deeper origin is uncertain.
More examples
- Her energy begins to flag after lunch.
- Despite the setbacks, his determination never flags.
- The runners are flagging on the final hill.
Forms
flag · flags · flagged · flagging
unflagging adjective — Maintaining steady energy or enthusiasm.