How Many Choices Do You Have If You Have a Myriad of Choices and What Does the Word Myriad Mean?

Since the sixteenth century, writers have used the adjective myriad to describe a large, unspecified, or overwhelming number.

For example, “The student had a myriad of excuses for not turning in his assignment” or “Steve had a myriad of reasons for his wrong decision.”

Neither of these uses is literally incorrect, but based on its Greek root, one myriad is exactly ten thousand.