aperient vs nature

aperient

noun
  • A laxative, either in the form of a medicine or a food such as asparagus or hops, which has the effect of moving the bowels, or aiding digestion and preventing constipation. 

adj
  • Having a gentle laxative effect. 

nature

noun
  • The need to urinate and defecate. 

  • Spontaneous love, affection, or reverence, especially between parent and child. 

  • The essential or innate characteristics of a person or thing which will always tend to manifest, especially in contrast to specific contexts, reason, religious duty, upbringing, and personal pretense or effort. 

  • The distinguishing characteristic of a person or thing, understood as its general class, sort, type, etc. 

  • Sexual desire. 

  • The way things are, the totality of all things in the physical universe and their order, especially the physical world in contrast to spiritual realms and flora and fauna as distinct from human conventions, art, and technology. 

  • The vital functions or strength of someone or something, especially (now dialect) as requiring nourishment or careful maintenance or (medicine) as a force of regeneration without special treatment. 

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