sum vs tranche

sum

noun
  • A summary; the principal points or thoughts when viewed together; the amount; the substance; compendium. 

  • The basic unit of money in Uzbekistan. 

  • The utmost degree. 

  • A quantity of money. 

  • The basic unit of money in Kyrgyzstan. 

  • A type of administrative district used in China, Mongolia, and Russia. In Mongolia, a sum is smaller than a province. In China, it is only used in Inner Mongolia, where it is equivalent to a township. 

  • An arithmetic computation, especially one posed to a student as an exercise (not necessarily limited to addition). 

  • A quantity obtained by addition or aggregation. 

  • A central idea or point; gist. 

verb
  • To add together. 

  • To give a summary of. 

tranche

noun
  • A slice, section or portion. 

  • A distinct subdivision of a single policyholder's benefits, typically relating to separate premium increments. 

  • One of a set of classes or risk maturities that compose a multiple-class security, such as a CMO or REMIC; a class of bonds. Collateralized mortgage obligations are structured with several tranches of bonds that have various maturities. 

  • A pension scheme's or scheme member's benefits relating to distinct accrual periods with different rules. 

verb
  • To divide into tranches. 

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