Unscramble Repitoid

What is the meaning of word repitoid unscrambled?

What 8 letter words can be made from letters R E P I T O I D:

Make more words by adding or removing letters

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

1. diopter - Definition of diopter

2. dioptre - Definition of dioptre

3. diorite - Definition of diorite

4. peridot - Definition of peridot

5. Poitier - Definition of Poitier

6. proteid - Definition of proteid

7. riptide - Definition of riptide

8. tiderip - Definition of tiderip

Which 7 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter R and unscrambling epitoid
2) Removing the letter E and unscrambling rpitoid
3) Removing the letter P and unscrambling reitoid
4) Removing the letter I and unscrambling reptoid
5) Removing the letter T and unscrambling repioid
6) Removing the letter O and unscrambling repitid
7) Removing the letter I and unscrambling repitod
8) Removing the letter D and unscrambling repitoi

More anagrams containing the letters R E P I T O I D
repodiit repoditi eptiriod tepdioir