Unscramble Nerrigid

What is the meaning of word nerrigid unscrambled?

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

Make more words by adding or removing letters

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

1. dingier - Definition of dingier

2. grinder - Definition of grinder

3. regrind - Definition of regrind

4. ridgier - Definition of ridgier

Which 7 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter N and unscrambling errigid
2) Removing the letter E and unscrambling nrrigid
3) Removing the letter R and unscrambling nerigid
4) Removing the letter R and unscrambling nerigid
5) Removing the letter I and unscrambling nerrgid
6) Removing the letter G and unscrambling nerriid
7) Removing the letter I and unscrambling nerrigd
8) Removing the letter D and unscrambling nerrigi

More anagrams containing the letters N E R R I G I D
nerriidg nerriigd renirgid nidregri