Adresszusatz doesn't really have an English equivalent but the closest translation I can come up with is address addendum. It is an extra line in (on-line) address documents for more information about the address. You could use it to put in a floor or suite number if the recipient lives or works in a large building, or specify a department.
greave is not a German word.
But isn't a German word.
Plick is not a German word.
Rouse is not a German word
"houpacker" means nothing in German; it is not a German word.
Oxded is not a German word
That word is not German, sorry.
Do you mean elan? Then the word exists in German
Sunna is not a German word. The closest German word is Sonne which translates as sun.
The German word herr is equivalent to the English word Mister.
If you mean what is the German word for the Italian ham prosciutto, then it is the same in German.
midt is not a German word. The closest German word is mit which translates as with.