Highlight words inside of input textarea

I need to create a input textarea that recognize words from the array of words in this.state and highlight the words while the user type the text:

expected results:

the array of words:

the input textarea:

the code with array

const arrOfWords = ["disposition", "distress", "vex", "governess", 'intimacy', 'footing', 'unreserve', 'intellectual', 'solitude']