grey vs grey-haired

grey

adj

  • UK and Commonwealth standard spelling of gray. 

  • Synonym of coloured (pertaining to the mixed race of black and white). 

verb

  • UK and Commonwealth standard spelling of gray. 

noun

  • UK and Commonwealth standard spelling of gray. 

grey-haired

adj

  • Having grey hair. 

  • old, wise, experienced. 

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