loofah vs porifer

loofah

noun
  • The dried fibrous interior used as a sponge for bathing 

  • Any bathing sponge 

  • A tropical vine, of the genus Luffa, having almost cylindrical fruit with a spongy, fibrous interior; the dishcloth gourd 

verb
  • To clean or scrub with a loofah. 

porifer

noun
  • An animal of the phylum Porifera; a sponge. 

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