Mylen-ham[m]

According to the Old English Dictionary:

es;

mylen-ham[m]

m. An enclosure in which a mill stands :-- Hit (the boundary) cymþ nyðer to ðam mylenhammæ and se mylenham and se myln ðǽrtð, Cod. Dip. Kmbl. iii. 189, 10. mylen-hamm