ablutions vs bathroom

ablutions

noun
  • The location or building where the showers and basins are located. 

  • A building that houses bathing and toilet facilities on a military base. 

bathroom

noun
  • A room containing a shower and/or bathtub, and (typically but not necessarily) a toilet. 

  • A lavatory: a room containing a toilet and (typically but not necessarily) a bathtub. 

verb
  • To assist a patient with using the toilet and general personal hygiene. 

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