Unscramble Iprefis

What is the meaning of word iprefis unscrambled?

What 7 letter words can be made from letters I P R E F I S:

Make more words by adding or removing letters

How many 6 letter words can you make from letters I P R E F I S?

1. Pieris - Definition of Pieris

Which 6 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling prefis
2) Removing the letter P and unscrambling irefis
3) Removing the letter R and unscrambling ipefis
4) Removing the letter E and unscrambling iprfis
5) Removing the letter F and unscrambling ipreis
6) Removing the letter I and unscrambling iprefs
7) Removing the letter S and unscrambling iprefi

More anagrams containing the letters I P R E F I S
iprefsi ipreifs frpiise ifiserp