| 'Tom' is a common name among the people of the Shire and Bree-land alike.  It appears to be an abbreviation, but cannot come from the modern (ultimately Greek) name Thomas, which would not fit the linguistic conditions of Middle-earth.  In the Cotton family of Shire-hobbits, 'Tom' was a shortened form of Tolman, and perhaps that applied to Tom Pickthorn as well.  However, Tom Pickthorn was a Man rather than a Hobbit, and came from the Bree-land rather than the Shire, and so it is entirely possible that his nickname 'Tom' represented a quite different (and unknown) full name. Indeed, though 'Tom' in modern usage is usually a nickname, it seems at least plausible that 'Tom' was actually a full name in the Bree-land, and not in fact an abbreviation at all.  In Old English, tom can mean 'gentle', and perhaps this was the intended source of Tom Pickthorn's name. |