fibre vs oakum

fibre

noun
  • Material in the form of fibres. 

  • A kind of lightweight thread of execution. 

  • A single piece of a given material, elongated and roughly round in cross-section, often twisted with other fibres to form thread. 

  • A long tubular cell found in bodily tissue. 

  • Said to be of a morphism over a global element: The pullback of the said morphism along the said global element. 

  • Dietary fibre. 

  • Moral strength and resolve. 

  • The preimage of a given point in the range of a map. 

oakum

noun
  • A material, consisting of tarred fibres, used to caulk or pack joints in plumbing, masonry, and wooden shipbuilding. 

  • The coarse portion separated from flax or hemp in hackling. 

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