West Middle German is a High German dialect family in the German language. Its dialects are thoroughly Franconian including the following sub-families:
Apart from West Middle German on the southern edge and in south-east Franconian dialects are turning to Upper German. This transition area between Middle German and Upper German is captured by the dialect families of Southern Franconian and East Franconian, colloquially miscalled Franconian, because dialects of this sub-family are spoken all over Franconia.
During the Middle Ages, the WestGermanic languages were separated by the insular development of Middle English on one hand, and by the second Germanic sound shift on the continent on the other.
The linguistic contact of the Viking settlers of the Danelaw with the Anglo-Saxons left traces in the English language, and is suspected to have facilitated the collapse of the Old English inflexional system that marked the onset of the Middle English period 12th century.
West Flemish (in West Flanders and nearby areas of Belgium, Zeeland in the Netherlands, and France)