caving

from The Collaborative International Dictionary of English v.0.48
Cave \Cave\, v. t. [imp. & p. p. {Caved}; p. pr. & vb. n.
   {Caving}.] [Cf. F. caver. See {Cave}, n.]
   To make hollow; to scoop out. [Obs.]
   [1913 Webster]

         The mouldred earth cav'd the banke.      --Spenser.
   [1913 Webster]
    

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