splice vs tranche

splice

verb
  • To unite, as spars, timbers, rails, etc., by lapping the two ends together, or by applying a piece which laps upon the two ends, and then binding, or in any way making fast. 

  • To unite as if splicing. 

  • To remove intron sequences from the pre-messenger RNA, and then join together exons. 

  • To unite, as two ropes, or parts of a rope, by a particular manner of interweaving the strands, the union being between two ends, or between an end and the body of a rope. 

  • To unite in marriage. 

noun
  • A junction or joining of ropes made by splicing them together. 

  • The electrical and mechanical connection between two pieces of wire or cable. 

  • That part of a bat where the handle joins the blade. 

  • Bonding or joining of overlapping materials. 

  • The process of removing intron sequences from the pre-messenger RNA, and then joining together exons. 

tranche

verb
  • To divide into tranches. 

noun
  • 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. 

  • A slice, section or portion. 

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