Anglo-Norman language general use of the word "acre" for land measurement in Normandy until metrication in the 19th century, but these words are probably linguistic traces of Saxon or Anglo-Scandinavian settlements between the 4th and the 10th centuries in Normandy. Otherwise the direct influence of English in mainland Norman (such as "smogler" - to smuggle) is from direct contact in later centuries with English, rather than Anglo-Norman. When the Normans invaded England, Anglo-Saxon literature had reached a very high level of development. The important Benedictine monasteries both wrote chronicles and guarded other works in Old English. However, with the arrival of the
Anglo-Norman language Normans arrived in England, their copyists wrote English as they heard it, without realising the peculiarities of the relationship between Anglo-Saxon pronunciation and spelling and so the spelling changed. There appeared different regional Modern-English written dialects, the one that the king chose in the 15th century becoming the standard variety. In some remote areas, agricultural terms used by the rural workers may have been derived from Norman French. An example is the Cumbrian term "sturdy" for diseased sheep that walk in circles, derived from "étourdi" meaning giddy. Norman French also had some degree of influence on Frisian and Dutch, due