The Collaborative International Dictionary of English v.0.48:

Enodation \En`o*da"tion\, n. [L. enodatio explanation, fr.
   enodare to free from knots. See Enode.]
   The act or operation of clearing of knots, or of untying;
   hence, also, the solution of a difficulty. [R.] --Bailey.
   [1913 Webster]