heart vs pith

heart

noun
  • Emotional strength that allows one to continue in difficult situations; courage; spirit; a will to compete. 

  • A wight or being. 

  • A muscular organ that pumps blood through the body, traditionally thought to be the seat of emotion. 

  • A playing card of the suit hearts featuring one or more heart-shaped symbols. 

  • The centre, essence, or core. 

  • Vigorous and efficient activity; power of fertile production; condition of the soil, whether good or bad. 

  • One's feelings and emotions, especially considered as part of one's character. 

  • The twenty-fourth Lenormand card. 

  • The seat of the affections or sensibilities, collectively or separately, as love, hate, joy, grief, courage, etc.; rarely, the seat of the understanding or will; usually in a good sense; personality. 

  • A conventional shape or symbol used to represent the heart, love, or emotion: ♥ or sometimes <3. 

verb
  • To form a dense cluster of leaves, a heart, especially of lettuce or cabbage. 

  • To fill an interior with rubble, as a wall or a breakwater. 

  • To be fond of. Often bracketed or abbreviated with a heart symbol. 

pith

noun
  • Power, strength, might. 

  • The essential or vital part; force; energy; importance. 

  • The spinal cord; the marrow. 

  • The soft, spongy substance in the center of the stems of many plants and trees. 

  • The albedo of a citrus fruit. 

  • The spongy interior substance of a feather or horn. 

  • One divided by pi. 

verb
  • To extract the pith from (a plant stem or tree). 

  • To kill (especially cattle or laboratory animals) by cutting or piercing the spinal cord. 

adj
  • The ordinal form of the number pi. 

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