hob vs least weasel

hob

noun
  • A male ferret. 

  • A rounded peg used as a target in several games, especially in quoits. 

  • A kind of cutting tool, used to cut the teeth of a gear. 

  • The top cooking surface on a cooker; a cooktop. It typically comprises several cooking elements (often four), also known as 'rings'. 

  • The flat projection or iron shelf at the side of a fire grate, where things are put to be kept warm. 

  • The hub of a wheel. 

verb
  • To engage in the process of cutting gears with a hob. 

  • To create (a gear) by cutting with a hob. 

least weasel

noun
  • The common weasel, little weasel, or simply weasel (Mustela nivalis), the smallest member of the weasel genus Mustela, native to Eurasia, North America, and North Africa. 

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