harbor vs nurse

harbor

verb
  • To hold or persistently entertain in one's thoughts or mind. 

  • To take refuge or shelter in a protected expanse of water. 

  • To drive (a hunted stag) to covert. 

  • To provide a harbor or safe place for. 

noun
  • A sheltered expanse of water, adjacent to land, in which ships may anchor or dock, especially for loading and unloading. 

  • Any place of shelter. 

  • A mixing box for materials. 

  • A harbor, even if it is a little harbor, is a good thing, since adventurers come into it as well as go out, and the life in it grows strong, because it takes something from the world, and has something to give in return - Sarah Orne Jewett 

nurse

verb
  • To care for (someone), especially in sickness; to tend to. 

  • To drink slowly, to make it last. 

  • To breastfeed: to be fed at the breast. 

  • To foster, to nourish. 

  • To manage with care and economy. 

  • To breastfeed: to feed (a baby) at the breast; to suckle. 

  • To treat kindly and with extra care. 

  • To hold closely to one's chest 

  • To strike (billiard balls) gently, so as to keep them in good position during a series of shots. 

noun
  • One who, or that which, brings up, rears, causes to grow, trains, or fosters. 

  • A larva of certain trematodes, which produces cercariae by asexual reproduction. 

  • A person (usually a woman) who takes care of other people’s young. 

  • A shrub or tree that protects a young plant. 

  • A person trained to provide care for the sick. 

  • A lieutenant or first officer who takes command when the captain is unfit for his place. 

  • A nurse shark or dogfish. 

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