Unscramble Errdphisi

What is the meaning of word errdphisi unscrambled?

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

1. ridership - Definition of ridership

Make more words by adding or removing letters

How many 8 letter words can you make from letters E R R D P H I S I?
Which 8 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter E and unscrambling rrdphisi
2) Removing the letter R and unscrambling erdphisi
3) Removing the letter R and unscrambling erdphisi
4) Removing the letter D and unscrambling errphisi
5) Removing the letter P and unscrambling errdhisi
6) Removing the letter H and unscrambling errdpisi
7) Removing the letter I and unscrambling errdphsi
8) Removing the letter S and unscrambling errdphii
9) Removing the letter I and unscrambling errdphis

More anagrams containing the letters E R R D P H I S I
errdphsii errdpihis hseirpird iirsrdhep