affine vs grand

affine

noun
  • A relative by marriage. 

adj
  • Of or pertaining to a function expressible as f(⃑x)=A⃑x+⃑b (where A is a linear transformation and ⃑b is a constant), which, regarded as a transformation, maps parallel lines to parallel lines and finite points to finite points. 

  • Assigning finite values to finite quantities. 

  • Of two materials, having mutual affinity. 

verb
  • To refine. 

grand

noun
  • A grandparent or grandchild. 

  • A grand piano 

  • A thousand of some unit of currency, such as dollars or pounds. (Compare G.) 

adj
  • Of a large size or extent; great. 

  • Standing in the second or some more remote degree of parentage or descent (see grand-). 

  • Having higher rank or more dignity, size, or importance than other persons or things of the same name. 

  • Fine; lovely. 

  • Containing all the parts proper to a given form of composition. 

  • Great in size, and fine or imposing in appearance or impression; illustrious, dignified, magnificent. 

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