ablution vs soaping

ablution

noun
  • Originally, the purifying of oils and other substances by emulsification with hot water; now more generally, a thorough cleansing of a precipitate or other non-dissolved substance. 

  • Washing oneself; bathing, cleaning oneself up. 

  • The liquid used in the cleansing or ablution. 

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

  • The act of washing or cleansing the body, or some part of it, as a religious rite. 

  • The rinsing of the priest's hand and the sacred vessel following the Communion with, depending on rite, water or a mix of it and wine, which may then be drunk by the priest. 

  • The ritual consumption by the deacon or priest of leftover sacred wine of host after the Communion. 

soaping

noun
  • A cleaning with soap. 

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