Like the other Scandinavian languages, Danish is derived from Old Norse, and by the first half of the 12th cent. Between 1100 and 1800 a number of phonological changes took place in Danish, and the grammar became increasingly simple. The spelling and pronunciation of the language began to be standardized c.1700, and a modern standard Danish can be said to have existed since about 1800, although there are still a number of dialects.
Danish grammar is comparatively simple.
The meaning of nouns that are otherwise the same can depend on gender. Verbs have no personal inflection. Although the vocabulary of Danish is substantially native, many words have been borrowed from other languages, notably from Low German in the 14th to 16th cent. Because of the large number of similar and identical words in Danish, Norwegian, and Swedish, a knowledge of any one of these languages makes it possible to understand the spoken and written forms of the other two. Listing from Electric Library , a pay service.