Aastrup (Åstrup in the post-1948 Danish Orthography) is the name of five villages in Denmark. The name means "Village by a stream" in English. As is the case with many the names of the small Danish villages and towns, Aastrup also a surname (though not very common). Having Aastrup (or Åstrup) as a surname implies having ancestry from one of the villages. The orthography of a language is the set of rules of how to write correctly in the writing system of a language. ...
References
Kort & Matrikelstyrelsen: Danske stednavne og stamoplysninger (The National Danish Survey and Cadastre: Danish names of places and thier origins)