The situation of a ship which, within a bar-harbour, is left aground on the spring-tides so that she cannot go to sea or be floated off till the return of the next spring-tides.
·adj Left aground on the height of a spring tide, so that it will not float till the next spring tid...
Webster's Dictionary of the English Language
The situation of a vessel when she is aground at the height of spring-tides. (See neaped.) ...
The Sailor's Word-Book