knob vs pecan

knob

noun
  • A chunky branch-like piece, especially of a ginger rhizome. 

  • A ball-shaped part of a handle, lever, etc., designed to be grabbed by the hand. 

  • The head of the penis; the glans. 

  • A rounded protuberance, especially one arising from a flat surface; a fleshy lump or caruncle. 

  • A woman's breast. 

  • A contemptible person; dick. 

  • A prominent rounded hill. 

  • A freshman at The Citadel, The Military College of South Carolina. 

  • The clitoris. 

  • A rounded control switch that can be turned on its axis, designed to be operated by the fingers. 

  • A prominent, rounded bump along a mountain ridge. 

  • A dollop, an amount just larger than a spoonful (usually referring to butter). 

  • A bulb of the garlic plant consisting of multiple cloves. 

  • A rounded ornament on the hilt of an edged weapon; a pommel. 

verb
  • To have sex with. 

pecan

noun
  • A smooth, thin-shelled, edible oval nut of this tree. 

  • A half of the edible portion of the inside of this nut. 

  • A deciduous tree, Carya illinoinensis, of the central and southern United States, having deeply furrowed bark, pinnately compound leaves, and edible nuts. 

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