fettle vs preorder

fettle

verb
  • To sort out, to fix, to mend, to repair. 

  • To make preparations; to put things in order; to do trifling business. 

  • To line the hearth of a furnace with sand prior to pouring molten metal. 

  • To be upset or in a bad mood. 

  • In ceramics, to remove (as by sanding) the seam lines left by the meeting of two molds. 

noun
  • Sand used to line a furnace. 

  • One's mental state; spirits. 

  • a seam line left by the meeting of mold pieces. 

  • The act of fettling. 

  • A person's mood or state, often assuming the worst. 

  • A state of proper physical condition; kilter or trim. 

preorder

verb
  • To sort or arrange beforehand. 

  • To order (goods or services) in advance, before they are available. 

adj
  • Such that, recursively, the root is visited before the left and right subtrees. 

noun
  • A binary relation that is reflexive and transitive. 

  • An order for goods or services placed in advance. 

How often have the words fettle and preorder occurred in a corpus of books? (source: Google Ngram Viewer )