These letters can be rearranged to spell the word wapentake.
The 9-letter word you can form with the letters s, e, t, o, b, r, k, e, and n is "brokenest."
Thermometer
aesthete
Exceeded
Generational
radioes
event
loose, lemon
bureaus
seapiece
severely
there is no 9 letter word starting with e and using all of the letters. but the word unscrambled is FORGETFUL.