Left aground on the height of a spring tide, so that it will not float till the next spring tide; – called also
beneaped
.
Webster 1828 Edition
Neaped
NEAPED
, BENEAPED,
Adj.
Left aground. A ship is said to be neaped, when left aground, particularly on the height of a spring tide, so that she will not float till the return of the next spring tide.