Unscramble Idierrphs

What is the meaning of word idierrphs unscrambled?

What 9 letter words can be made from letters I D I E R R P H S:

1. ridership - Definition of ridership

Make more words by adding or removing letters

How many 8 letter words can you make from letters I D I E R R P H S?
Which 8 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling dierrphs
2) Removing the letter D and unscrambling iierrphs
3) Removing the letter I and unscrambling iderrphs
4) Removing the letter E and unscrambling idirrphs
5) Removing the letter R and unscrambling idierphs
6) Removing the letter R and unscrambling idierphs
7) Removing the letter P and unscrambling idierrhs
8) Removing the letter H and unscrambling idierrps
9) Removing the letter S and unscrambling idierrph

More anagrams containing the letters I D I E R R P H S
idierrpsh idierrshp rriedspih rpesrdiih