You have to make 20 words out of Denmark with 4 letters?

Here's a couple extra:

1 amen

2 dame

3 damn

4 dank

5 dare

6 dark

7 darn

8 dean

9 dear

10 derm

11 dram

12 drek

13 earn

14 kame

15 kane

16 karn

17 kern

18 knar

19 made

20 make

21 mane

22 mare

23 mark

24 mead

25 mean

26 mend

27 merk

28 name

29 nard

30 nark

31 near

32 nema

33 nerd

34 rake

35 rand

36 rank

37 read

38 ream

39 rend