I'm curious if words that Shakespeare invented count. There are many words that we see first used by Shakespeare, though some of them were probably words invented during his time by others with him merely being the first to record (in documents that survived until today).
The latter is probably more the case. The OED, for instance, has had a bias in favor of using Shakespeare as a word's origin since that dictionary's first edition. The number of words attributed to Shakespeare in the OED has dwindled over time.
