"(In Scotland) a man or boy who attends someone on a hunting or fishing expedition", Late 16th century: from Scottish Gaelic gille 'lad, servant'. The word was also found in the term gilliewetfoot, denoting a servant who carried the chief over a stream, used as a contemptuous name by Lowlanders for the follower of a Highland chief. sense 2 dates from the 1930s.[gillie etymology, gillie origin, 英语词源]