carmine vs pigweed

carmine

noun
  • A purplish-red colour, resembling that pigment. 

  • A purplish-red pigment, made from dye obtained from the cochineal beetle; carminic acid or any of its derivatives. 

  • carmine 

adj
  • Of the purplish red colour shade carmine. 

pigweed

noun
  • Portulaca bicolor, of Australia 

  • Polygonum aviculare (common knotgrass) 

  • Amaranthus species 

  • Heracleum sphondylium 

  • Any of various weedy plants sometimes used as pig fodder 

  • Chenopodium album, white goosefoot 

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