Unscramble Setstofs

What is the meaning of word setstofs unscrambled?

What 8 letter words can be made from letters S E T S T O F S:

Make more words by adding or removing letters

How many 7 letter words can you make from letters S E T S T O F S?

1. softest - Definition of softest

Which 7 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter S and unscrambling etstofs
2) Removing the letter E and unscrambling ststofs
3) Removing the letter T and unscrambling sestofs
4) Removing the letter S and unscrambling settofs
5) Removing the letter T and unscrambling setsofs
6) Removing the letter O and unscrambling setstfs
7) Removing the letter F and unscrambling setstos
8) Removing the letter S and unscrambling setstof

More anagrams containing the letters S E T S T O F S
setstosf setstsfo tsftesso otfssest