Dun:

name of a horse in an old Christmas game,called“Dun is in the mire”，in which a heavy log represen-ting a horse was lifted and taken away by players;hence,dun-in-the-mire,stick-in-the-mud. dull fellow 圣诞节游戏“褐色马陷在泥里”中的马名，陷在泥中的褐色马，顽固不化的人，木头木脑的人。
△Rom.1.4. 41: “If thou artDun,we’ll draw thee from the mire / Of this Sirreverence love，”即使你是褐色马，我们也要把你从爱情的泥泞里（请原谅我这样说）拉出来。