A cast or throw back.

A backward stroke, or a stroke driving one back.

Any discouragement or cause of relapse or failure.

Misfortune; reverse; reversal; a relapse in health or illness; moral backsliding.

Retrospect; hindsight.

Backwater

To identify the actions required in order to reach a proposed future.

To change retrospectively; reverse.

Retrospective.

(of time) Long ago; in the past.