agglomerate vs clew

agglomerate

verb
  • To wind or collect into a ball; hence, to gather into a mass or anything like a mass. 

noun
  • A collection or mass. 

  • A mass of angular volcanic fragments united by heat; distinguished from conglomerate. 

  • An ice cover of floe formed by the freezing together of various forms of ice. 

adj
  • collected into a ball, heap, or mass 

clew

verb
  • to roll into a ball 

  • (transitive and intransitive) to raise the lower corner(s) of (a sail) 

noun
  • Yarn or thread as used to guide one's way through a maze or labyrinth; a guide, a clue. 

  • The cords suspending a hammock. 

  • The sheets so attached to a sail. 

  • The lower corner(s) of a sail to which a sheet is attached for trimming the sail (adjusting its position relative to the wind); the metal loop or cringle in the corner of the sail, to which the sheet is attached. (on a triangular sail) The trailing corner relative to the wind direction. 

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