Unscramble Errnseid

What is the meaning of word errnseid unscrambled?

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

Make more words by adding or removing letters

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

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 rrnseid
2) Removing the letter R and unscrambling ernseid
3) Removing the letter R and unscrambling ernseid
4) Removing the letter N and unscrambling errseid
5) Removing the letter S and unscrambling errneid
6) Removing the letter E and unscrambling errnsid
7) Removing the letter I and unscrambling errnsed
8) Removing the letter D and unscrambling errnsei

More anagrams containing the letters E R R N S E I D
errnside errnsied edrsirne iensrrde