How many words you use today did Shakespeare coin?

Answer 1

Almost all of them. The only exceptions would be older forms of articles that have since evolved (thou, thy, ye) and some abbreviations that we no longer use ('tis, o'er) as well as some esoteric words and expressions that we no longer use.

Off the top of my head, I only have one Shakespeare speech memorized, so let's look at it:

To be, or not to be, that is the question:

Whether 'tis nobler in the mind to suffer

The slings and arrows of outrageous fortune,

Or to take arms against a sea of troubles

And by opposing end them. To die-to sleep,

No more; and by a sleep to say we end

The heart-ache and the thousand natural shocks

That flesh is heir to: 'tis a consummation

Devoutly to be wish'd. To die, to sleep;

To sleep, perchance to dream-ay, there's the rub:

For in that sleep of death what dreams may come,

When we have shuffled off this mortal coil,

Must give us pause-there's the respect

That makes calamity of so long life.

Of that entire section, the only words we don't use anymore are "tis" (replaced by it's), "wish'd" (replaced by wished), and "ay" (at least, I don't use it, but you might still hear it in Scottish English for example).

Sure, some of the expressions he uses might seem pretty weird to our ears, but what you asked is how many words are still in use from Shakespearean times, and I'd say almost all of them.

Answer 2

Estimates on this vary widely. It's a fair guess to say that about 1500 Shakespearean coinages may still be around.