Unscramble Derepgin

What is the meaning of word derepgin unscrambled?

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

Make more words by adding or removing letters

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

1. Dnieper - Definition of Dnieper

2. dreeing - Definition of dreeing

3. energid - Definition of energid

4. peering - Definition of peering

5. preeing - Definition of preeing

6. reeding - Definition of reeding

7. reigned - Definition of reigned

8. repined - Definition of repined

9. ripened - Definition of ripened

Which 7 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter D and unscrambling erepgin
2) Removing the letter E and unscrambling drepgin
3) Removing the letter R and unscrambling deepgin
4) Removing the letter E and unscrambling derpgin
5) Removing the letter P and unscrambling deregin
6) Removing the letter G and unscrambling derepin
7) Removing the letter I and unscrambling derepgn
8) Removing the letter N and unscrambling derepgi

More anagrams containing the letters D E R E P G I N
derepgni derepign rpgneeid eernigpd