To neglect; to be remiss in.
To languish; to fail; to flag.
To abate; to become less violent.
To end; to cease; to desist; to slake.
To be remiss or backward; to be negligent.
To cause to become less intense; to mitigate; to abate; to ease.
To lose rapidity; to become more slow; as, a current of water slackens.