emerald vs money plant

emerald

noun
  • Any hummingbird in the genera Chlorostilbon and Elvira; and some in the genus Amazilia 

  • Any of various green gemstones, especially a green transparent form of beryl, highly valued as a precious stone. 

  • Emerald green, a colour. 

  • Any of various species of dragonfly of the family Corduliidae. 

adj
  • Of a rich green colour. 

verb
  • To ornament with, or as if with, emeralds; to make green. 

money plant

noun
  • A small, fleshy-leaved plant of the species Crassula ovata 

  • A small plant with very round, dark green leaves, of the species Pilea peperomioides, native to southern China. 

  • Pachira aquatica, a tropical wetland tree, native to Central and South America.known by a variety of common names including 

  • A herbaceous biennial plant of the species Lunaria annua, grown for its attractive spring flowering and dried silver seed pod middles, native 

  • A tropical vining plant of the species Epipremnum aureum, native to northern Australia and much of southern and eastern Asia. 

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