A seven letter word starting with E could be epitome.
The longest word starting with E is Electroencephalographically.
evokeevadeeludeexileeerieeagleeliteelateemceeetudeeyrieeraseexudeemoteensueelopeentre
Etapele
earlyeliteenjoyenterexits
there is no 9 letter word starting with e and using all of the letters. but the word unscrambled is FORGETFUL.
expense, entente
amaze
Alikeabovealone
There are no four letter words in English starting with e and ending in q.
Emily, my name
Empty