Unscramble Rheftids

What is the meaning of word rheftids unscrambled?

What 8 letter words can be made from letters R H E F T I D S:

1. redshift - Definition of redshift

Make more words by adding or removing letters

How many 7 letter words can you make from letters R H E F T I D S?

1. dithers - Definition of dithers

2. redfish - Definition of redfish

3. shifted - Definition of shifted

4. shifter - Definition of shifter

Which 7 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter R and unscrambling heftids
2) Removing the letter H and unscrambling reftids
3) Removing the letter E and unscrambling rhftids
4) Removing the letter F and unscrambling rhetids
5) Removing the letter T and unscrambling rhefids
6) Removing the letter I and unscrambling rheftds
7) Removing the letter D and unscrambling rheftis
8) Removing the letter S and unscrambling rheftid

More anagrams containing the letters R H E F T I D S
rheftisd rheftsdi srdfheti rtfidseh