The Collaborative International Dictionary of English v.0.48:

Inarch \In*arch"\, v. t. [imp. & p. p. Inarched; p. pr. & vb.
   n. Inarching.]
   To graft by uniting, as a scion, to a stock, without
   separating either from its root before the union is complete;
   -- also called to graft by approach. --P. Miler.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Inarching \In*arch"ing\, n.
   A method of ingrafting. See Inarch.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Ablactation \Ab`lac*ta"tion\ n.
   1. The weaning of a child from the breast, or of young beasts
      from their dam. --Blount.
      [1913 Webster]

   2. (Hort.) The process of grafting now called inarching, or
      grafting by approach.
      [1913 Webster]