Standard & Poor
Those letters spell escape.
Gillyweed
werewolf
butterbeer
The letters 'lmrauof' unscramble to spell the word forumla.The next possible longest words are armful and formal.
Elixir of life
cuiryotis -> curiosity
Madam Hooch.
Vernon Dursley
Peppermint toads
hiss and behave grand
Tom Felton works.