1911 Encyclopædia Britannica/Gillie

GILLIE (from the Gael. gille, Irish gille or giolla, a servant or boy), an attendant on a Gaelic chieftain; in this sense its use, save historically, is rare. The name is now applied in the Highlands of Scotland to the man-servant who attends a sportsman in shooting or fishing. A gillie-wetfoot, a term now obsolete (a translation of gillie-casfliuch, from the Gaelic cas, foot, and fliuch, wet), was the gillie whose duty it was to carry his master over streams. It became a term of contempt among the Lowlanders for the “tail” (as his attendants were called) of a Highland chief.