The Collaborative International Dictionary of English v.0.48:
Neaped \Neaped\, a. (Naut.) Left aground on the height of a spring tide, so that it will not float till the next spring tide; -- called also beneaped. [1913 Webster]The Collaborative International Dictionary of English v.0.48:
Beneaped \Be*neaped"\, a. (Naut.) See Neaped. [1913 Webster]