kolach vs sinker

kolach

noun
  • Type of pastry that holds a portion of fruit or cheese, surrounded by a puffy cushion of supple dough. 

sinker

noun
  • A doughnut; a biscuit. 

  • In knitting machines, one of the thin plates, blades, or other devices, that depress the loops upon or between the needles. 

  • Any of several high speed pitches that have a downward motion near the plate; a two-seam fastball, a split-finger fastball, or a forkball. 

  • Sinker nail, used for framing in current construction. 

  • A weight used in fishing to cause the line or net to sink. 

  • One who sinks something. 

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