I was reading a short book on Shakespeare by Bill Bryson, and he mentioned Shakespeare's "idiolect" as an indicator that Shakespeare himself wrote his plays. That is, now with computer analysis, we can quite accurately know what words and terms Shakespeare used and didn't use and how often. The distinguishing pattern of word choice in an author is the "idiolect," the person's idiosyncratic lexicon.
So, for example, Bryson says that Shakespeare seldom used the word "also". And he used the old-fashioned term "brethren" instead of the more common "brothers". He used many leather tanning terms (his father was a glover) and built new images and metaphors around the flowers of his rural youth. No one else is likely to get this combination of word choice, this idiolect-- it's sort of like a voice fingerprint.
Anyway, not that anyone's likely to run computer analysis of our own lexicon, but if someone did, what would be the markers of your idiolect?
I know mine would be kind of boring, because my most common words would be "just" and "then". What about yours?