Ainscough
Ainscough is an old Cumberland family name, also spelled Ayscough, Aiskew, Askew, and Ascough.
Origins
It is thought that the name is derived from the Norse words "ask skog". Although other sources suggest that Aiskew is a corruption of the words "Eiki Skogr" translating to Oak Wood. An alternative Swedish translation for the name “enskog” is “juniper forest”, with the “en” pronounced “ain”. The "ain" part of the word meaning juniper, "skog" meaning wood or forest. In Medieval English the name was pronounced 'Akeskeugh' or as SAMPA suggests 'eInsk@U'. Today the name is pronounced 'Ains/co'.
Other suggestions indicate that the name Ainscough is of French origin. When William the Conqueror invaded England, he brought his army of knights. These knights from Normandy were given land for their effort during the invasion and were placed as his head of government in each Shire. Wikipedia has information about a plaque placed in Normandy Cathedral before leaving for England. This plaque has a list of knights. There are 2 knights listed as "Ansgot" which would have been the French spelling for Ainscough. However, further evidence is required to support this translation of the name.