lemon vs saffron

lemon

adj
  • Of the pale yellow colour/color of lemons. 

  • Containing or having the flavour/flavor and/or scent of lemons. 

  • Smart; cheeky, vocal. 

verb
  • To flavour with lemon. 

noun
  • A semitropical evergreen tree, Citrus limon, that bears such fruits. 

  • A more or less bright shade of yellow associated with lemon fruits. 

  • A defective or inadequate item or individual. 

  • A yellowish citrus fruit. 

  • Favor. 

  • A piece of fanfiction involving explicit sex. 

saffron

adj
  • Having an orange-yellow colour. 

noun
  • An orange-yellow colour, the colour of a lion's pelt. 

  • A spice (seasoning) and colouring agent made from the stigma and part of the style of the plant, sometimes or formerly also used as a dye and insect repellent. 

  • The plant Crocus sativus, a crocus. 

verb
  • To add saffron to (a food), for taste, colour etc. 

  • To dye (a fabric, garment, etc.) with a saffron-based dye. 

  • To give a saffron colour to (something). 

  • To colour (a metal or wooden surface) with a gilding product containing saffron. 

  • To embellish. 

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