dishwasher vs laver

dishwasher

noun
  • Someone who washes dishes, especially one hired to wash dishes in a restaurant. 

  • A European bird, the wagtail. 

  • A machine for washing dishes. 

  • A bird, the restless flycatcher (Myiagra inquieta). 

laver

noun
  • One who laves: a washer. 

  • That which laves, particularly a washbasin. 

  • Other seaweeds similar in appearance or use, especially 

  • A red alga/seaweed, Porphyra umbilicalis (syn. Porphyra laciniata), eaten as a vegetable. 

  • Porphyra vulgaris 

  • Where one laves, a washroom, particularly a lavatorium, the washing area in a monastery. 

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