A search for [google authorship gone from search] matches the word "gone" with "disappeared."
I searched for "gone" but Google highlighted the word "dropped" in the snippet. Not in the title, Google did not bold the word "Drops" in the title tag. They did bold the word "dropped" in the snippet.
Interesting distinction, don't you think?
Back in 2011 Google bolded the title for related words.
Forum discussion at Google+.