To go astern

from The Collaborative International Dictionary of English v.0.48
Astern \A*stern"\, adv. [Pref. a- + stern.] (Naut.)
   1. In or at the hinder part of a ship; toward the hinder
      part, or stern; backward; as, to go astern.
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   2. Behind a ship; in the rear. "A gale of wind right astern."
      --De Foe. "Left this strait astern." --Drake.
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   {To bake astern}, to go stern foremost.

   {To be astern of the reckoning}, to be behind the position
      given by the reckoning.

   {To drop astern}, to fall or be left behind.

   {To go astern}, to go backward, as from the action of
      currents or winds.
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