early vs only

early

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

  • Soon; in good time; seasonably. 

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. 

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

only

adv
  • As recently as. 

  • Without others or anything further; exclusively. 

  • Used to express surprise or consternation at an action. 

  • Introduces a disappointing or surprising outcome that renders futile something previously mentioned. 

  • No more than; just. 

noun
  • An only child. 

conj
  • Under the condition that; but. 

  • But; except. 

adj
  • Alone in a category. 

  • Singularly superior; the best. 

  • Without sibling; without a sibling of the same gender. 

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