loof vs radius

loof

noun
  • The palm of the hand. 

  • The spongy fibers of the fruit of a cucurbitaceous plant (Luffa aegyptiaca). 

  • The after part of the bow of a ship where the sides begin to curve. 

  • The hand, especially, the hand outspread and upturned. 

radius

noun
  • The long bone in the forearm, on the side of the thumb. 

  • The lighter bone (or fused portion of bone) in the forelimb of an animal. 

  • A line segment between any point of a circle or sphere and its center. 

  • One of the major veins of the insect wing, between the subcosta and the media; the vein running along the costal edge of the discal cell. 

  • Anything resembling a radius, such as the spoke of a wheel, the movable arm of a sextant, or one of the radiating lines of a spider's web. 

  • The length of this line segment. 

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