Unscramble Errdeins

What is the meaning of word errdeins unscrambled?

What 8 letter words can be made from letters E R R D E I N S:

Make more words by adding or removing letters

How many 7 letter words can you make from letters E R R D E I N S?

1. deniers - Definition of deniers

2. dernier - Definition of dernier

3. derries - Definition of derries

4. desirer - Definition of desirer

5. Dreiser - Definition of Dreiser

6. nerdier - Definition of nerdier

7. nereids - Definition of nereids

8. redries - Definition of redries

9. renders - Definition of renders

10. rerisen - Definition of rerisen

11. resider - Definition of resider

12. resined - Definition of resined

13. serried - Definition of serried

Which 7 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter E and unscrambling rrdeins
2) Removing the letter R and unscrambling erdeins
3) Removing the letter R and unscrambling erdeins
4) Removing the letter D and unscrambling erreins
5) Removing the letter E and unscrambling errdins
6) Removing the letter I and unscrambling errdens
7) Removing the letter N and unscrambling errdeis
8) Removing the letter S and unscrambling errdein

More anagrams containing the letters E R R D E I N S
errdeisn errdenis rneeirsd rsnderie