ANCRUM, a village on Ale or Alne Water, a tributary of the Teviot, Roxburghshire, Scotland. Pop. (I 93I) 858. The name has a Gaelic root and the village is of considerable antiquity ; a Roman road forms the north-east boundary of the parish. Ancrum Moor, 2m. N.W., was the scene of a battle in in which the English were defeated by the Scots.