utilise vs utilize

utilise

verb
  • To make useful; to find a practical use for. 

  • To make use of; to use. 

  • To make do with; to use in manner different from that originally intended 

  • To make best use of; to use to its fullest extent, potential, or ability. 

utilize

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