cleft vs tranche

cleft

noun
  • A piece made by splitting. 

  • An opening, fissure, or V-shaped indentation made by or as if by splitting. 

  • A disease of horses; a crack on the band of the pastern. 

adj
  • split, divided, or partially divided into two. 

verb
  • To syntactically separate a prominent constituent from the rest of the clause that concerns it, such as threat in "The threat which I saw but which he didn't see, was his downfall." 

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 cleft and tranche occurred in a corpus of books? (source: Google Ngram Viewer )