laver vs washbowl

laver

noun
  • That which laves, particularly a washbasin. 

  • Other seaweeds similar in appearance or use, especially 

  • One who laves: a washer. 

  • 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. 

washbowl

noun
  • A basin for washing the face and hands; a washbasin. 

  • A sink in a bathroom, connected to a supply of water and a drain, in which one may wash one's face and hands. 

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