early vs overtime

early

noun
  • A shift (scheduled work period) that takes place early in the day. 

adj
  • Near the start or beginning. 

  • Near the start of the day. 

  • Having begun to occur; in its early stages. 

  • At a time in advance of the usual or expected event. 

  • Arriving a time before expected; sooner than on time. 

  • Of a star or class of stars, hotter than the sun. 

adv
  • At a time before expected; sooner than usual. 

  • Soon; in good time; seasonably. 

overtime

noun
  • Working time outside of one's regular hours. 

  • A period of time longer than scheduled. 

  • An extra period of play when a contest has a tie score at the end of regulation. 

  • The rate of pay, usually higher, for work done outside of or in addition to regular hours. 

verb
  • To measure something incorrectly, as taking more time than it actually did. 

adv
  • Beyond the normal or usual extent. 

  • Exceeding regular working hours. 

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